Step 1: Launch Arma 3 launcher through Steam.
Step 2: Launch game through Arma 3 launcher.
Step 3: Join Singleplayer or Multiplayer game.
Step 4: Play until screen goes black with the error "The instruction at 0x0000000000DAB3A9 referenced memory at 0x0000000000000070. The memory could not be read."
(Note: error in step 4 has had different variables each time the game has crashed).