This petition is to get valve to fix and update:
1. Defusal bug - not being able to defuse while defuse kit is on the bomb.
2. Crabbing - Sliding around the floor and bieng impossible to hit when stopping half way through a bomb plant.
3. Crouch bug - Already fixed in tf2 where it doesn't even effect gameplay...
4. Multicore support - Again already been implemented into tf2.
5. Silent jump - Being able to jump whilst stood still without making noise.
6. Allow stacking of more than two people.

Valve have pretty much stopped updating css alltogether even though there still releasing new games and updating older games, and it NEEDS an update.