I heard abou the game quiting itself but I didn't have time to investigate it further. There are bigger hordes of enemies that can spawn in the game. While just roaming is fairly calm if you just don't run through all the enemies without stopping for a second, and the marker soon swaps position making you return back back to the starting area to exit through a zone. Throwing was generally ment as a finishing move you mainly want to use it when your weapon is breaking or it has good statistics for throwing. Sorry for the long reply