I'm curious to know when the crashing on macOS will be fixed? Since 1.8.1 was released, I've been unable to play. Played fine on 1.8.
64G of RAM, SSD, Lowest graphics settings with a 2015 Retina 17" iMac. To me, this appears to be a 32bit execution in a 64bit only system (Catalina).
Just out of curiousity have you completely purged and reinstalled Battletech since moving to Catalina?
I ask this because I played both 1.8 and pre Catalina on a way lower spec machine than yours (2015 13" macBook Pro) with a cooler pad and it was playable in vanilla without issues.
I have now got a 2019 13" macBook Pro, probably still lower spec in a lot of regards as it has no video card, I got it after 1.8 shipped I think so it never had any legacy bits sitting around, I have upgraded it to Catalina and Battletech has still run without issues (although I still use my stand with the fans when I play and I have been using Macs Fan Control to wind the fans up).