I played the web version, it's good though needs some work. If I may put in my suggestion...
Maybe instead of that bar or with the bar, have a hp counter, like next to the artillery make a small number say 2, then one. And on the ACU, the regeneration's terrible (if it exists)... I think you should have it say 100hp or something (10,000 divided by 100) and then have 1 regenerate every 3-5 seconds, like it is in the current SC:FA. (37 or so for 10k hp ACU)
Also, if we do a survival, like the first mission which I couldn't get past, display the number of units left at the top left/right or something. Maybe this can develop into a full browser-based game. But in order for it to do that, we may need for the T1-T3 PD to really work. And it's interesting how the bombers work and you could implement a type of DPS thing. If so, let the units come and then actually be able to build point defense.
In the repair menu, it's there, but when you click on a building, nothing happens. You should be able to pick a faction and build the PDs (idea: touch repair icon, touch on the pd that appears, then touch where on the screen to put it). Otherwise, it gets stale. What I was hinting at about DPS is having Cybrans and Aeons (if adding them in) be able to build a T3 Beam defense, a defense that fires beams.
Costwise, maybe have them do...
(Note: Since this game is simpler than SC2 and SC:FA and doesn't require an actual building of economical structures (and it's easy and playable on a phone because of it) then maybe you should compress to one resource, a measure of mass-energy equivalence, equal to, say, 1 mass + 1/100 energy with the ACU producing 2 mass-energy units per second.)
T1 pd: .5 dps, cost (50 meu)
T2 pd: 1.5 dps, cost (120 meu)
T3 pd: 4 dps, cost (250 meu)
Then if you do decide to put in economical structures, they can generate that resource, like
T1 production: 1 meu/s, (20 meu cost).
T2 production: 5 meu/s, (200 meu cost).
T3 production: 25 meu/s, (2000 meu cost).
That should probably be the limit if you want the browser based game to be the same as the phone game. Have those icons, for pd and eco, but make them smaller.
However, we are limited to survival modes. Maybe have pd be able to build a few of their tier of units like a factory, and if you select units (touch/click on one at a time to gradually select entire fleet) then you can touch somewhere on the map to get them moving. Maybe we can have a small AI base where the objective is to destroy his ACU or a structure in his base.
There, just my two cent.