Since someone flagged my "FIRST!" comment..
first. ALSO, this is a flash version of a game that you could download for PC. the original is about as good as the flash, although you had two additional weapons available to you in the downloadable version.
@ganyiki- blue Barricade, blue team. that's hy they could go through. the previous game had the same attack-get attacked responses, which in all honesty makes sense. ouldn't YOU shoot back? ;)