How do you unlock the red sniper beam in Metroid Prime hunters for DS?

Answer 1

You'll need the Magmaul. Go to Arcterra a fire up the map. Look very closely at the Sic Transit room, see that orange door in the corner blending in with the map? That's out target. Break through the orange blast shield with a burst from the Magmaul and step through to discover the Fault Line region.

This huge region possesses a number of items just waiting for you to discover along with the Stronghold Portal. Step forward and look for a number of Quadtroids. Stay back and deal with them all to release a force field ahead. Around a corner here you'll discover a very heavily guarded artifact hidden behind a force field along with a vortex of arcing electricity. This Shock Barrier's control terminal resides somewhere above, so don't worry about it for now. With your position clear be sure to scan Seal Sphere 01 and Alimbic War 09. Lots more juicy details to learn from these. Step forward through one of the two tunnels and exit the ice cave. As you do a familiar face rear its ugly head; an Arctic Spawn bursts from the snow to attack. Scan the monster before engaging, then simply use the Magmaul against its weird mouth when it opens. Watch out for hurling ice projectiles, rub the touch screen if you're caught frozen. Upon sealing the fate of this best you'll be rewarded with a red orb materialising over by the door ahead. Scan it to reveal it as your final weapon, the Imperialist! (This is the "red sniper beam"). You'll definitely be needing this precision piece, pick it up and read about how to use the zoom feature. The game will now show you a red ornate object high above, use the Imperialist's zoom to score a direct hit. A lift will lower, granting you access to the region above.