Everytime I get killed in a scenario (in this case "Whole Lotta Stratis") I get a black screen, and all I can see in it is the Arma 3 Alpha logo in the bottom right. The game itself didn't crash - it just goes all black.
This problem did not happen until two days ago, and it happens all the time now, without exeption. I haven't installed any mods recently - all I did was delete a couple of scenarios (with the exception of Whole Lotta Stratis of course) and nothing else.