Let, me list them.
Vladimir Makarov,
Ultranationalists,
Opfor,
Shadow Company,
Lieutenant Gen. Sheppard
kill about 5-7 enemies
You can't
Kill 25 enemies with headshots from LMG's
There are multiple enemies in Modern Warfare 3. They are Makarov, Volk, and Warrabe
Challenge: "Counter-C4: I" - Kill 3 enemies by shooting C4.
Kill 100 enemies while using a silenced weapon.
Kill 10 enemies with a single killstreak reward
Fire an entire LMG magazine into your enemies without missing.
Kill 100 enemies while using the Last Stand perk.
Modern warfare reflex and modern warfare are the same. Modern warfare "reflex" means that its for wii. If its just modern warfare its for the other consoles
i think this is when you destroy certain amounts of the enemies tactical insertions.
Stab 50 enemies with your knife. You must be prestiged.