I can't access Mantis atm, so I'm just going to ask this here.
Awhile back I made a post, then a bug report about not seeing the white boxes around asteroids on the silent thread mission in which you're to escort 3 cruisers. The mantis thing said that this was addressed.
After playing "Rebels & Renegades" in Freespace 2, I found the problem to be exactly the same. Because I originally made this out to be an issue with the Silent Threat mission only, should I repost this bug in mantis? I don't know the details of what has been fixed. The reason why I only thought it an issue with silent threat was because I hadn't noticed this behaviour in the FS1 mission where you escort the Galetea- I went back to play it and realized it was a problem there too. I only didn't notice it, because the shivans that you target and fight warp in at the end of the level as opposed to partway through.
Also, in related issues, if you have auto targeting on it will target and asteroid and highlight it in red.
