This is a good start. I echo what many people have said; I think the 2042 maps feel good in vehicles, but not as infantry. For a good balance I’d point to Caspian Border, which of course, is already in the portal mode. I can’t quite pinpoint what it is, but that map’s flow, cover, exploration, and each of the capture points feel natural, interesting to fight around, convenient yet challenging to rotate to, and most importantly, it feels very good.
I think personally that Caspian works very well for both conquest and rush, and by extension I’d imagine breakthrough would also work quite well. I think it’s secret is that each capture point is varied and has interesting environmental aspects to interact with I.e. many destructible buildings, and as well, the flags are very easy and quick to rotate to while still having lanes that are interesting to fight around + have natural cover, like how the centre flag is atop a ridge and there’s that tiny river to its immediate west that you have to go through to get to C flag, or the small highway in the southwest of the map where you can dance between the main highway and the river, etc.
I also realize that you folks said you based Orbital off of Caspian border, but I think orbital’s problem is it is simply too big. It has the interesting infantry gunfight areas; I think rush on Orbital is quite good, so my suggestion is somehow condensing those areas together while keeping the rotations between them interesting, quick, and varied, having natural cover baked into them. For example, perhaps trenches could be added in that huge runway centre of the map so it’s not so vulnerable for infantry to cross etc.