1. A swarmable unit is indeed a unit that can have multiples of itself inside a, sort of say, group. Non-swaramble units are the opposite there can be only one of them at a time.

In that case, your Chunker will be made the most powerful unit in the game, and quite beefed up too.  Otherwise, 1 Chunker could lose against 2 Command Ships (since human, Ptaloid and Tosonian command ships can be grouped up)

EDIT: If you're fine with it, I'm allowing players to build Cythid units on hold.  That way, if one chunker dies, another one can be available immediately.  Ships in S.A.D. require time to build, so a player can build, for example, chunkers ahead of time for cases like this

I like your detailed Hydron better than the smaller one.

I read the full description, now that I finally had a chance to just sit down.  11 thumbs up.  I have just a couple of comments:

1.  What do you mean by swarmable?  S.A.D. allows a person to build multiple units of the same type at once, do you mean that a non-swarmable unit can only be used one at a time?  Or what do you mean by swarmable?

2.  I'll gladly help you any way I can, but make sure that each unit will make the player want to use it in late game.  Part of the difficulty I had with designing the Ptaloids and the Tosonians is making sure that even an hour into a game, each and every unit could help the player win the game.  In Starcraft, I have rarely seen Dark Archons and Queens being used, and I wanted to avoid that.

3. The Tosonians have a lot of air units, and most of their buildings float in the air as well.  Once again, I'll help you out, but we'll want to make sure that the Cythid can counter this without heavy difficulty.  So far, the Humans and Ptaloids do well with that, so we just need to do something similar with the Cythid.

I got the text-scrolling routine working, so I'll have a screenshot up tonight.  This might be a good time for me to say that don't take a look a screenshot and think to yourself, "That's ALL you can do in designing campaigns?"  Like S.A.D. itself, the campaign mode is in development, so you have a lot to look forward to.  Don't judge the campaign mode by early screenshots.

I am getting slightly annoyed with re-thinking this race over and over again

Even if you hated all your old units, buildings and strategies for the Xaos, I LOVED IT.  I can come up with a "history" for them if you want.  I'm just saying, if you're trying to remap for your own sake, that's fine by me, but otherwise, I really, really looked forward to the old Xaos idea and still like it nowadays.  I'll even be fine if you decide you just want to do the standard 9-units-without-upgrading thing, and I can work on the statistics.

Again, your choice.

Should be fun!  But don't pressure yourself   Have some cherry flavored coffee.

Gotcha.  And that's good, because then the 15 Mhz won't be way-too-fast for people testing it.  I'm going to leave the OS testing for people running the calcs, and use the emulator just to test compatibility.

True. I'm using 2.0.1 and I think the speed is identical, although I am using a computer emulator, nspire_emu_026