The original OG Arma barracks, the ones with the shower room first left. The sweet spot for the doors is stupidly small and finicky to hit, especially when under pressure. Players shouldn't lose their lives fighting against poor design choices.
It needs to be made much bigger. Especially now there's Namalsk on 1.10, where one 'mistake' is as good as game over when the zeds rip you a new one because you can't open a door..