Why the f*king hell i must spend 10k credits on Arkspikes or whatever called if when i use it and enter in a ark i get the final fight when is ending?

2 damn times in a damn row i joined to ended arkfall first one at 5 min left and this one at 2 mins left... i was there since the begining i saw it fall i fighted enemies WHY I MUST FIGHT THE DAMN BOSS when there is nothing to do.. is not even funny

And i got disconnected from a third one when i got the rewards... isnt in my inventory... the new weapons i "won" on a third arkfall gone by a damn disconnection..

Why you use PTS server? if you dont fix nothing?