I just played a server with "the Force" mod in it, its quite cool you get a max of 2500 xp, it goes up by 10 every second, you can use things like Force lightning(zapps a enemy), chain lightning(dunno wit that does yet), force see (turns gamma really high to see dark spots) force heal (heals you by 5 hp per every 50 xp) and force push, if you seen the movies you know what the push does, which is freakin awesome, and force persuade (i dont know what it does but it cost 1700 xp so it must be good)