I am unsure which forum to use but here goes: there is a bug that occurred in a game I was in where an individual was camping in a specific spot where my team and I could not shoot him at all yet he could spawn camp snipe and prevent capture of the objective. We filled the marker to 100% and we could not kill him to capture it and eventually ran out of waves. This is apparent at around the 1-minute marker of the Youtube video I provide.
Replay ID: fa831b63-f6da-486c-ad03-dfa10a81f2d2
Youtube Demonstration: https://www.youtube.com/watch?v=saYS9PZFRcg