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
U have to have xbox live
Nov.9.2010
MW3
boys
Rictofen and Misty is in Black Ops 2.