Hacking or Bug?
I joined a survivor bounty hunter game, the map was CORRODED. 4 players. Turned out to be a suprise/difficult map, as a demeter spawned on round 6, making it to the exit for all 4 players, shortly after, a ray spawned, also making it through the exit on all four players, but, only two of the players lost a life for the ray. I was one who did not lose a life, so my lives were at 19 though a demeter and a ray leaked. later in the game, all players would have similar.. "issues"... creeps leaking through, and not losing lives for it. Again, i'm not sure if this was a game bug, or someone attempting (poorly) to hack as all players were experiencing similar issues, as far as i could tell.
Unfortunately i can't find how to view/download the game code/lines of what happened so i can't give you that, unless it's saved to my account or a server.