on 07-25-2011 10:50 AM
1. Combat Training
This is the most valuable way, barring the next point, to improve your game. Combat Training has most of the benefits of online multiplayer — leveling, unlocks, money, etc. — without one pesky element: other players screaming at you. Select a map, tweak some variables (skill level of A.I. bots, match length, etc.), and go play. The A.I. actually uses some decent tactics on its own and there’s really no better way to learn map layouts, feel of the guns, and your favorite Perks before playing against real people. You can also invite friends into your session to practice some team coordination. Just keep in mind that the stuff you unlock and purchase in this mode is separate from actual multiplayer.
2. Instant Replay, aka Theater Mode
Here is another way for you