You can't have one string for land maps and one for space maps, sadly. And either way, you're most often not organized in squadrons in the first place, it's more like one squad for all bombers, one for all cap ships, and so on.

I'm in favor of calling squads fireteams, myself (because it fits the definition far better, that is, not because FH2 does it, and in fact I had the idea long before downloading the mod anyhow), but of course that'd clash really badly with the space maps. Maybe something more neutral would be better, like 'Unit'.

As for squad names, only the Rebels colour-coded their flight groups, so I'm against the idea. It'd also look a bit stupid on ground maps.

It really depends. On the one hand, using Greek letters for squad/unit/fireteam/whatever names is kinda strange, because I don't remember the Greeks being anywhere in Star Wars. On the other hand, though, it kinda meshes well for new players coming over from Vanilla. Also, given the people on this forum (:P) it might be easier to let sleeping dogs lie, rather than stir up open warfare over a suitable replacement. It works now, mainly because everyone's either a) ignores it or b) doesn't notice it. Although, if there's a better option out there...