[AR55 MtM]

Well heres how i think the backs should go
3 man team- Front 2+1 Mid 2+1 Back 4+3
5 man team- Front 2+1 Mid 3+2 Back 5+4
7 man team- Front 3+2 Mid 3+2 Back 5+4
10 man team- Front 3+2 Mid 4+3 Back 5+4

but then again when you use these setups you might wanna change your strats like your mid player wears a heavy and tosses a gup to your front they make some neat tubes made for that
but then again its all about personal pref but theres my suggestions