It's like some terrible abstract art.
Anyone else been using the underslung shotgun for the assault class? Doesn't seem to be as popular as the grenades, but it's pretty much an I-win button when used correctly, that is, at very close range. Really fun to use as an ambush weapon, and it's actually fairly decently balanced by it's reload time and range imo.
I wish smoke grenades would get used more often as well, they're surprisingly effective in Rush for covering an m-com prior to a bomb plant. Can also be alot of fun after the bomb is planted, just smoke the entire area and force the disarmers to charge in more or less blind.