It's very dumb. Here are some comments
S: 6 - Minigun requires 7, all you could use is LSW and flamer, but these guns are useless and LSW can't be crafted.
P: 7 - BGs don't need it as much as SGs, you can lower it to 6, but if you make L1 you can keep it 7.
E: 5 - If not powerbuild, you are fine.
C: 3 - If it is your powerbuild, lower it to 1, if you want it as main char, keep it 3. Nothing wrong with this one.
I: 7 - You can keep it.
A: 6 + SF - If you make L1 put it 7.
L: 6 - Big guns don't need this at all as you will mostly do an instant kill. Feel free to lower it to 1. I have L1 myself and it isn't actually that bad.
Finnese - for gods sake, change it to Fast shot. You will find it WAY more valuable. Finnese is useless for BGs.
Small frame - you won't be able to carry much. Avenger weights 12 kg, while you will be able to carry about 50. That's almost no place for loot. Bloody mess doesn't do anything as BGs always shreds in pieces, not recomending. Best to not select second trait or keep bloody mess for fun.
Big guns, repair, science - You are fine.
Care to tell me what perks are you gonna take?