So since we lost our cross hair in either update 3 or 3.5 it has been hard to combat. The simple 3rd person cross hair or the cross hair command in console really sucks and does not work half the time so I have found a really simple cross hair and really small in file size
https://steamcommunity.com/sharedfiles/filedetails/?id=1823045812&searchtext=crosshair
https://steamcommunity.com/sharedfiles/filedetails/?id=1823045812&searchtext=crosshair