this hack is pretty good

the ctrl+w thing is annoying and not very useful.
also somethings you could add:
1. if you see someone through a wall, change the color a bit so it's easy to tell if he is behind a wall or not
2. that you can use shift+w while jumping and if you look at the ground and you use it, that you can walk into the ground.
3. something like no or less recoil
btw. thanks for the hack