I understand why this game doesn't have multiplayer, but mods are a whole different story. Multiplayer would have near crippled the game, but I don't see what harm mods can do. It would have the game's life be a lot longer, and would liven up the experience because the game is very linear and there's not much incentive to play it again after finishing it.

Nope, no skirmish mode. I would play it to the death if there was one :D

Same here. Skirmish maps would have been nice for many reasons. Elroy's AI and the mammoth tank came into the game waaaaaaaaaaaaay too late. Would have been nice to actually use them instead of rushing to complete the objectives on the last few time limit maps. :(

If that reboot is still ongoing then pitch idea about a possible skirmish mode (preferably with random-generated maps too), along with mod support and (or) multiplayer support.

Hopefully they aim for more than just some HD touch up.

Considering the game design is loosely similar to the modern MOBA genre with the right people behind a project like this I bet it could become very successful.