Original General Dungeon Fighter Thread

Ok don't mean to change the subject but... I was wondering if someone could tell me if I screwed up with my character build? Its a lvl 31 spitfire and his skills are:
5 jack spike
1 Gatling gun
3 BBQ - 1 is sufficient. BBQ is very useful when you use it, but it probably doesn't get used enough to justfiy extra points in it. You be the judge of this.
4 ice bullet
8 silver bullet - More than 5 is a waste, blazing bullets are better. Exception: a PVE build that exploits the weaknesses of the monsters in each dungeon.
1(so far) blazing bullet
4 of that ranger skill that lets you shoot alot in the air - 1 is enough for PVP. A PVE build could benefit from more though.
5 windmil
3 of that ranger kicking skill thats like a knee(not jack spike) - I doubt you use mach kick enough to benefit much from the extra damage, leave at 1
3 crossmore
5 flash mine - This is useless unless you keep adding points to it as you level because if you don't, the stun level will fall behind. SP is a little tight even with the 50 cap and this skill eats 30 SP every 2 levels. You should think carefully and plan your level 50 build before deciding to get higher than level 1 flash mine. I have seen flash mine used to great effect in videos where a mine is put down next to a downed opponent, stunning them when they get up.
5 or 6 grenade
3 flash bang
5 each of those two spitfire buffs things... I dont remember what they are called - Pierce booster is great with blazing bullets. It can help you hit an opponent with the magic part of it twice. Immobillity booster is pretty useless.

And thats it so far so can anyone tell me if I screwed up? Please?

I am assuming a pvp build. I commented on things you have that you shouldn't have or might want to reconsider. Now for things you don't have but should:

Rising shot 5 minimum + cancel for knockdown, poking, and a ground combo finisher
Punisher 1 for breaking through super armor
Land runner 1 for annoyance
Steyr 1 for long-range poking
Quick Rebound
Consider backstep + cancel. Some people use it, some people don't.