What´s up with the respawn-point system in rb-groundforces?

Hey guys!

I just had a game (5.0 max, noice for murrica) with my 5.0 murricans (m18, m4a1/2 76) and managed to get 2 (player) kills and one assist before i died as a hero in service for my country. What happend after that? I got enought respawnpoints to spawn into my... tripple-a, M15... yeah... nice... what the ****?
I coulnd´t hop into my other proper tanks because they where to "expensive"... did they nerfed the gain of respawnpoints somehow?

Spawnpoints also depends on the BR within your match, if you are at the high spectrum of that match, you'll have to pay more points
And ofcourse, when u are on the lowend of that match, you'll get in vehicles cheaper
Maybe that had to do something with it?
Also it may help to bring a tank of a slightly lower BR then what u want to play, because those will also be cheaper to spawn in
Good luck and have fun