7-10 + 4-6 = 11-16.
I think enough discussions and points have been made. I just want to correct your math based on the +/- 2 for squads...
(5-12) + (2-8) = 7-20
could have upped 7 if both squads were at minimum-2.
could have upped 20 if both squads were at maximum+2.