Whatup C_Losjoker -
Unfortunately there are not a lot of options in the bay to ball. Closest to the east bay is Paintball Jungle which is in Vallejo/American Canyon. They haven't up'd their site in forever but you can check it out at www.paintballjungle.com
. My hommies and I frequent the spot nearly every week or two...
Theres also a field in Vacaville called Midway, I haven't been there so I don't know anything about it.
Next up is Davis Paintball in Davis, CA. Kinda far but this place is typically packed with 150+ players for their "big Game" which takes place on the 1st Sat of every month.
Theres a indoor spot out in Rohnert Part, I have heard a lot of good things but I havent checked it out yet. Theres also a field in Santa Clara but I hear they aren't too fond of walkons...not sure how they stay in business as I never hear positive things about that field.
The best Airball fields are probably hands down @ Capital Edge out in Sacramento. Hella far and its always hella effin hot but if your into airball thats the spot to go.
Good luck finding a spot to call home... holla!