Simple answer is Knowledge and Skill. Combat training can help develop the skill.
Wikia's are available for all Call of Duty games and knowing more about the game's Gameplay, Missions, Maps, Perks, Achievements & Trophies, Locations, Characters, and Weapons will help develop more knowledge. See related link for one on Black Ops
yes
blackops.
no. halo reach has a better vote then blackops because of all the series.
By using different tactics every time you play a round if its either multiplayer or zombies.
Yes
yes :)
all you have to do is die
Nov.9.2010
MW3
U have to have xbox live
boys
I discovered tha blackops is an amzing game ;)