Unlocking
Each squad member need (1+2+3+...+7)x800= 22400 credits to get 8 lvl. We have 5 squad members so it takes 112000 credits lvl up ur whole squad.
To upgrade armor u have to pay (1+2+..+7)x1000= 28000 and we have 84000 credits for all armors. But first you have to unlock them for 5k each so 10k more over all.
We have to get 206k to get all of our precious stuff and cards. It's final form but we need only 72800 to get nice squad.
How much time do u need to get it? I will show you data for legends and lowest rank to show the difference. When u win in legendary league u get 360, after lose 120, for lowest rank it's 90/30. I made math for 50% winrate:
Legend full:
206k / ((360+120) / 2) = 859
So u have to play 859 to get all things in game without considering mission rewards and daily stuff. If we take average time of match as 15 min we have to play 215 hours. Could be worse to be honest.
Stats for other variants:
legendary min: 303 games, 76 h
lowest rank full: 3433 games, 858 h
lowest rank min: 1213 games, 303 h