What would you think of that? No upgrades: Standard (yellow) or 1 upgrade: Orange 2 upgrade: Red 3 upgrade: Blue so like the upgrades are basically just getting differnt fuels...or something...it'd look awesome (maybe) Personally I think it would be an awesome idea and would make the terrans even more different from each other in matches TvT or other games. I got the idea from here: http://www.battle.net/forums/thread.aspx?fn=sc2-general&t=98591&p=1&#post98591
Eh.... why would you want to customize your armys looks for money you could spend on more units... The color change of the flames should go hand in hand with which infantry damage lvl you have, the upgrades that are in the Engineering bay.
Starcraft will never have such a redundant upgrade, period. Now if it changed colours after each infantry weapon upgrade, that would be a nice feature. In fact I see a possibility of SC2 having a few upgrades that affect the appearance of units because we already have a few of these (bayonette+shield, hardened shield). So yeah, I can imagine colourful flames.
How about making the flames match the colour of your team? LOL, that was a joke about the protoss psi energy
If you look closely the firebat's fire comes out blue and turns orange when it hits air. Which brings up another interesting point similar to the mutalisk wings argument...how do firebats operate in space?
Yes but those don't expand into a big orange flame....they just make like a little blue cone that bubbles like mad.