Mod series Kane's Return for Tiberian Sun, originally released at kyberia.sk webpage. Presently not being developed any more, but already giving quite a lot of new units, also rebalancing the game towards more dynamic game and realistic range warfare.
Second, extended and reworked version of the Dune mod, introducing four factions, reflecting the story after first Herbert's book - Muad'Dib's Fremen, defending imperial dynasty of Corrino, Bene Tleilaxu and the Guild of Navigators. The balance may be an issue, as it was an experiment with realization of worms and melee combat.