I start with 3 Snipers, 2 Assaults, 1 Machine Gun, 2 Sub-Machines initially (since there are only so many good wpns).
A couple of days / 1, 2 wks later,
I Max my Snipers as much as possible, giving the rest assault (usually the weakest Sniper ability soldiers of the bunch).
Once my bolter rifle is up, i manufacture 1 rifle and 2 clips and repeat that until everyone has that.
Then it will be a full bolter rifle squad.
My secondary load will always be 2-4 flashbangs each with 2 bolter rifle clips as spare. lol.
Further up the game, i will have Laser Rifles x 2, Bolter Rifles x 4, and last 2 depending on their skills, but mostly Laser Rifle with Secondary Machine Guns.