Talk:SAS: Zombie Assault 4 Mobile/@comment-26704865-20150716035224/@comment-172.243.0.19-20150814103125

The Vaccine train bug happens when the game tries to force-load everyone on to the train and the player runs out of the train as it loads to the next sequence. The player is than outside of the train and can run to the lab ahead of the end of the train sequence. It's a great way for little cheating kill-stealing bitches to rack up great stats while still being shitty players.

It's also been reported many times and will be patched in the next update (if there even IS another update).