I reported what I consider a bug or exploit for the Devs to looks at, if i wanted to debate about the issue I would use the forums.
Edit ... Just cleared a corridor and the room at the end of it nobody there..
I sit watching the entrace to the corridor with only an empty room behind me...
Exploiters spawn in the room behind me and kill me...
I have overwatch covering the outside of the building.
TOTAL GAME BREAKING EXPLOIT