
First image with two Thompson SMGs

Second image shows that squad is only using one SMG even though they're supposed to have 2.
EDIT: Also, by right, the upgrade has no limit, so the upgrade can be researched for each squad at least two times (it's a squad upgrade, each of these squads have 4 weapon slots). But when I test in in-game, I can only research the upgrade once for each squad. Why is this happening?