No crash at the DEV version, after half hour gameplay in multiplayer (4 players).

edit: It was a new game, we just started to test a new mission.

Same here: random crash because of application error (PhysX3_x86.dll).

Attached the arma 3 alpha folder with the rpt-s, dxdiag, and the windows application error log.

http://data.hu/get/6369260/report.rar

Click on "Lassú letöltés" button, which means regular speed downloading.