Have you had trouble with the levels on multiplayer? Well here!
Step 1: Play the Map on Multiplayer Scramble
Well this is my favorite map I'd have to say. This is the map with the hangar like so.
Step 2: Find the Base
There is a base type thing on the opposite side of the map than the hangar.
Step 3: Run!
Run against the side of the box. Well more like against them so you jump over you glitch inside the tall side. After that you crouch. Then shoot people as they walk in!