Invasion Gradivus (Mars), All Corpus And Grineer Spawn In Last Few Rooms

[TrinityPrime]

They're basically trying to survive as long as possibly by hiding at the farthest point from the Tenno, leaving 95% of the area completely empty.

 

This is a bug, right?

[Boerevla]

I can confirm your issues, I simply have to spam the bastilles in the last tiles and my squad can have aiming practice.