[Mudshark]

the TDM mod-pak keeps the same Tech, most other mods do change the whole balance of the game, while not making the game unbalanced.

My advice would be to download some of the various Mods (to describe them would almost be like asking if you like Vanilla or Strawberry). Most of the Mods, if not all have good game play for single player. If the creators of the mods would like to pipe up and describe in detail, all of the power to them. They have put in more than a little time, and have changed the way the game is played. Let alone won

The hard coding does limit what can be done with this game, so they are all pretty much major tweaks the the SE 4 universe