[CSCZ] MP5A5

The MP5A5 from Counter-Strike: Condition Zero. I know, I've already handled the MP5K and MP5SD, but I was really craving a normal MP5 with one of those SureFire tactical lights, and I've always had a soft spot for Condition Zero. I tried to use the view model, but it's only half-modeled and would look pretty bad. So I went with the world model. Yeah it looks like a fancy cardboard papercraft, but I still think it's fun. Expect an SMG with a medium fire rate, high stability, low spread, and kinda middle damage output. Real credit goes to Valve and Turtle Rock Studios.