Just noticed when I did the autodetect on my video settings it no longer sets anything higher than the low settings for my GTX 760. When the game was first purchased this defaulted to Ultra. I'm assuming this is related to the other issues?

Thanks for your help, I have uploaded all the files as requested. The last crash report was with all the graphic settings set on LOW. Prior to the Helicopter DLC the game was running on ULTRA on my rig. The last crash was not a memory leak error just 'ARMA 3 has stopped working' at the save point again.

Launched game via steam. Set launch parameters to default. Game launched, auto detected graphics, this time reset itself to ultra. launched campaign and got the same crash at the auto save point again. This time memory leak error. Crash files uploaded 23.37 your time. Thanks.