Question about Reinforce Alert and campaigns.
 

Does RA make a good job of implementing 688 and Sub Command campaigns? Or am I better off booting up those games if I want to play these campaigns?

Hello, there! In my experience, I'd say you're better off booting up those games. The RA AI is rather brutal and I'm not sure if they tried re-tuning the campaigns for their mod or just put them together to make sure they worked. However, you can try them for yourself and be the judge.

I would really like to play campaigns in ra but when playing the ra conversions I encountered issues with bad translation, complicated or bugged missions triggers, and at times being forced through godlike AI antisub defense and loadscum.

That was years ago, can´t tell if the quality improved meanwhile.