Microsoft Xbox 360

We're in for some Chop' is a Halo 3 multiplayer achievement. It is awarded for destroying an enemy vehicle with equipment (e.g. a Trip Mine) in a ranked playlist or in campaign. It is represented by a yellow eight-pointed star on top of a red eight-pointed star. On top of this is a red circle with a white dash across it (a "No Entry" sign). This achievement was once impossible to acquire in Multiplayer. This changed with the addition of Ranked Big Team Battle.

• One way to get this achievement is to go to Tsavo Highway, disable a Brute Chopper (when there is a Brute in it) with a plasma pistol or with 1-2 Fuel Rod Cannon fire (aim for the wheel), throw a Trip Mine at it, and fire another overcharged shot at the Chopper. It will not reactivate in time to get away from the trip mine's explosion. Another easy way to get the achievement is use the Power Drain on a Grunt inside a Ghost, or a Trip Mine on any of the vehicles in the first Prowler battle of the level The Covenant.

• Another easy way is on the level The Ark, take a ghost to the part with the Jackals fighting marines. Just before the tunnel go to the area where you destroy the AA Wraiths and let the frigate come down. Ghost boost quickly to the left of the are right next to the entrance of the little tunnel, behind the upside-down mongoose and warthog. Drop a trip mine under a parked chopper with no driver that spawns there, if you get away fast enough, the brute driver will get in the chopper and the mine will go off the second he does. If you stay too close he will shoot you on foot instead of getting in it, detonating it without being in, if you do not damage it prior, it may not destroy it, so try shooting it a little with the ghost on the way up, maintaining the essence of speed.

• A relatively simple way to get this achievement is to hop on the first AA gun in The Storm and melee until the gunner dies, then simply place a trip mine beneath the AA wraith.

• The easiest way which requires no finesse is to play Tsavo Highway on Normal difficulty. Grab a Warthog and just drive past everything. When you get to the first barrier blocking the tunnel (where the convoy is hit) grab a chopper, disable the barrier and drive on. At the second break in the bridge (after the Covenant Cruiser jumps in) drive your Chopper carefully to the breaking point of the bridge. There should be a steel I-beam jutting out where you can drive your chopper over and take it into the next part of the level (The Broken Path). Just drive past everything else until you get to the 2 parked Choppers, 2 Brutes, and an overturned Warthog. Grab the trip mines next to the Warthog and race over to the nearest Shade. Jump out and run straight towards it (getting in between the turrets). Bash the Shade itself until you see visible damage (you should hit the front of the Shade and then the turrets of the Shade, alternate). Once you see damage, drop the Trip Mine right below the Shade and run so the gunner turns. The Trip Mine should blow and you get your achievement.

• Yet another method requires slightly more finesse. When you reach the first energy barrier on the level Tsavo Highway, jump out of your Warthog. Search the nearby buildings to acquire a trip mine. Once you have the trip mine, run out into the middle of the road and fire several shots at one of the Brute Choppers. There are several around. When the Chopper starts moving toward you, drop your trip mine. Wait for the Chopper to get too close to swerve aside, and jump to the side. You may catch a little of the blast, but only enough to propel you a little higher. If you don't feel brave enough to try this, just lay the mine, find some high ground directly in front of the mine, and shoot at a Chopper to lure it onto the mine.

• Another way is to go through the level Tsavo Highway on Legendary difficulty as normal until you get to The Broken Path. Then, after you fight all the Brutes (be sure to get a Trip Mine from the far "base" and the Pelicans drop off a couple Warthogs and some Marines, wait until the Brutes in the Choppers attack you. Throw a Spike Grenade in front of the Chopper, and then while the Chopper gets launched up, place a Trip Mine below him. You will get the achievement afterward.

• Just damage a Chopper on Tsavo Highway with a Brute shot, and if you are close enough, you will be able to throw a trip mine while the driver recovers and since choppers aren't too maneuverable, you should get the achievement. (Wait for the two spike things on top in front are bent up. This proves it's damaged enough.)

• An easy way to do this on campaign level Tsavo Highway is to play on multiplayer. After the Broken path, each grab a trip mine from the base at the top. get in a warthog and drive up the hill until you get about perpendicular with the sniping post. Both get out and stand on one side of the vehicle. You should checkpoint around this area. When the choppers crest over the hill, a few will aim at you. have one person throw a tripmine when the chopper charges you. If it hits, the chopper will be thrown, and take a moment to be able to drive again. During that pause, have the other player throw their tripmine at it. This should kill the chopper and get the achievement. If you both need it, revert to checkpoint and repeat, with the player who killed the chopper last time throwing their mine first.

• Start Tsavo Highway on normal. Drive with your warthog to the point where the drones and choppers are. Slaughter all Covenant forces and disable the barrier. Make sure not to destroy at least one of the choppers. Then, carefully drive your chopper to the point where marines jump out of the warthog. Go on the first part of the bridge then boost over the second part. If you miss, revert to last checkpoint. After you've killed all brutes and the Wraith go to the top of the hill and pick a trip mine out of the building. Get a plasma pistol and continue on foot. When choppers start to fight you, disable one with the pistol. Beat the vehicle if possible and drop a mine right in front of it. When it starts to move again, it will run right into your trap.

Taking place shortly after the events of the comic mini-series, Halo: Uprising, Halo 3 begins with the Master Chief entering Earth's atmosphere and crashing to the ground in eastern Africa, where he is found by Sgt. Major Johnson and the Arbiter. The Chief, Johnson, and company fight their way out of the jungle and arrive at a UNSC outpost. Here, Commander Keyes and Lord Hood plan a last-ditch effort to stop the Covenant leader, the High Prophet of Truth from activating a Forerunner artifact uncovered outside the ruins of the city of New Mombasa. The Chief is ordered to clear a way into the city of Voi and to destroy all anti-air Covenant defenses so Hood can lead the last of Earth's ships against the Prophet. Using the opening caused by the ground attack, Hood mounts an offensive against Truth's ship, but the Prophet activates the buried artifact which creates an enormous slipspace portal. As the human ships recover from the shock wave, Truth and his followers enter the portal, while a ship controlled by the Flood crash-lands nearby. Elite forces, allied with humanity, arrive and vitrify Flood-infected areas of Earth, neutralizing the parasitic threat. Following the cryptic message from the human artificial intelligence Cortana left aboard the Flood cruiser, the Chief, Arbiter, Elites, Johnson, Keyes and a handful of Marines follow Truth through the portal. Joining them is the Forerunner construct 343 Guilty Spark, who aids the Chief as he no longer has any function to fulfill after the destruction of his Halo installation in Halo: Combat Evolved. Traveling through the portal, the humans and Elites discover an immense artificial structure, the Ark far beyond the edges of the Milky Way galaxy. Here Truth can activate all the Halos. The Chief and company activate the installation's map room to find Truth at the Ark's control room. During their journey, the Flood arrive en masse on the former Covenant Holy City High Charity, and begin infesting the installation. While attempting to gain access to The Ark' Control Room, Johnson is captured by Truth; the prophet needs a human to utilize the Forerunner technology. Attempting to rescue Johnson, Keyes is killed by the prophet, and Johnson is forced to activate the rings. The Flood leader Gravemind forges a temporary truce with the Chief and Arbiter in an effort to stop Truth. The Arbiter, Master Chief, and Flood forces arrive and overwhelm Truth's guards, rescuing Johnson and halting the installations' firing. After the Arbiter kills Truth, Gravemind turns on the Chief and Arbiter, who escape the Flood's grasp.

The Chief, Arbiter and Guilty Spark discover that the Ark is creating a new ringworld to replace the one previously destroyed. The Chief decides to activate only this new ring to eliminate the local Flood while sparing the galaxy at large. Before he can activate the ring, however, he needs an Activation Index. Knowing that Cortana acquired a copy of one on the first Halo, he rescues the AI from High Charity and creates a chain reaction to destroy the infested city and severely damage the Gravemind.

Arriving on the new Halo, Cortana warns that the Gravemind is trying to rebuild itself on the ring. The Chief, the Arbiter, and Johnson make their way to the control room, where they will activate Halo's weapon. Guilty Spark explains that because the ring is not yet complete, a premature activation will destroy it and the Ark. When Johnson ignores his warning, Guilty Spark kills him to protect "his" ring. The Chief destroys Guilty Spark, activates the ring, and escapes the ring's blast on a frigate, Forward Unto Dawn.

Only the front half of Forward Unto Dawn, carrying the Arbiter, makes it through the portal. Believing the Chief and Cortana to have perished, a memorial service is held for the fallen heroes of the human and Covenant war. After the memorial service, the Arbiter departs for his home planet, where the Elites are finally free of the Prophets' hegemony. Meanwhile, the rear half of Forward Unto Dawn floats in unknown space. Cortana drops a beacon, but realizes it may be years before they are rescued. The Chief enters cryonic sleep, telling Cortana to "wake me, when you need me." If the game is completed at the Legendary difficulty level, the scene continues to show the piece of Forward Unto Dawn drifting towards a mysterious planet.