I thought you might be interested in looking at Playing Arma 2 CO on a MacBook Pro 2011 - And liking it!.
https://forums.bohemia.net/forums/topic/129279-playing-arma-2-co-on-a-macbook-pro-2011-and-liking-it/?do=findComment&comment=2136128
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.