I don't know if this is because of HTF or just survival, but at the end of a round when the game tries to kill me, I get:
Access Violation at address 004069E8 in module 'Soldat.exe'. Read of address 00000008.
and then the same message when trying to respawn.

I just tried this, and I didn't have any access violations error pop up.

But I discovered that if you killed everyone on the other team without having a person holding on your team, the game will get stuck. Like the game will kill everyone and it just pauses. On the other hand if a person on ur team held a flag, and kill all the players on the other team, it kills everyone and continues the game.