If you select a command center, and select "Return to orbit", it will drop all of the anti-creep it has in storage randomly on the map, and I think that random orbital anti-creep bombardment is a neat tactic and feature.
If you highlight the description of a unit (just below it's name) a popup with a little extra description shows up, and its often a little joke. Neat! 5/5 game
Thanks NDT_DYNAMITE :)