Think its 36 for the advanced, though tbh matey we dont play on the sniper slot maps very often.
Best thing to do is, do the basic military training and the para training. At some point when you are bored out of your brains do the SF classroom traning stuff.
Then get to lvl 14 doing the map SF Hospital, this is point whore time
( note: if your team is losing and you cant get on the winning team, leave the server imediately and find one where you can get on the winning team)
Spend lvl 14 to 15 getting yourself used to the Pipeline map. ( this is what we all play most of the time ) Once you reach 15 do the final part of your SF training or ask some kind soul to do it for you
Thats about it really, your then qualified to come die with us lot .