I created the AHK script to exit with ESC and Reload with Middle Click (since Right Click is used):  
	 
 
	;*******JUST CHANGE THE PATH TO "DeathLive.exe" ACCORDING TO YOUR SETTING
 
	Run, L:\Lightgun\Death Live 1.0.2\DeathLive.exe
 
	 
	MButton::r
 
	 
	Escape:: 
	    Process,Close,DeathLive.exe 
	    Run,taskkill /im "DeathLive.exe" /F 
	    ExitApp 
	return