For me I crashed twice before stopping playing.
No crash reports either time.
The first time I crashed on the approach to a clue (going under a compound fence, clue on other side). The second time I crashed immediately after the countdown into the match.
For reference I have had 0 issue running the game or anything in the past and play on max settings.
Quick Edit: I actually successfully completed the training mode without crashing between these games. I thought the first crash was a freak thing, so went to get my bloodpoints i'd left there whilst my buddies continued as a team of 2.
In short - the entire training mode worked fine (enemy ai, taking clues, spider, bounty, extraction), but public lobbies would crash within a couple of minutes. Perhaps that could help narrow down the issue?