Group Activity Points

I played multiple matches and got from 1st to 5th and i only have 79 squadron points, anyone know why?

are you playing squadron battles, the 8 v 8 gamemode

Activity points are different than Squadron score.

Squadron score is earned by victory in SQB (SQuadron Battles). it is a competitive mode.

Activity is earned by experience earned in standard random battle, 360 pts each 3 days on 10 periods for a total of 3600.
That activity (and the activity of all others members of the squadron) give you squadron RP for research squadron vehicles.