If you play on xbox you will get achievement points, they really do nothing. i find them for the fun of it:)
The intel items in Call of Duty: Modern Warfare 2 only unlocks trophies (PS3) or achievements (Xbox 360) when the player has collected 22 and 45 of the intel items. Unlike Call of Duty 4: Modern Warfare; collecting intel items do not unlock cheats for the single player campaign.
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You can get the enemy Intel in campaign. Where there will be hidden and you will have to search for them.
you find it by looking around all the levels for lab tops that are just siting there for no reason
you get unlimited ammo
there isnt any cheats until u get the intel
you have to get all of the Intel and complete all of the missions on veteran
here is a link to a website that i used. i got all thirty Intel laptop thingys. http://callofduty.wikia.com/wiki/Intel
Nothing really, they just unlock achievements.
http://www.supercheats.com/guides/call-of-duty-4/Intel-locations.shtml This website will explain where all the enemy Intel units are in the Call of Duty 4 campaign.
nothing you just get achievements but infinity ward said that they will do what they did on cod 4 modern warfare 1 and make cheats for when u collect them
Intel is located on laptop computers scattered throughout the game. You need to keep your eyes open for computers.