SC SUM is a Mod based on StarCraft Broodwar 1.16.1 that preserves the classic StarCraft gameplay with all its original units, upgrades and abilities but enhances the tech tree by three new unique super units, corresponding new research facilities and lots of new upgrades and abilities. In detail: 3 new super units, 1 new support unit, 3 new buildings, 15 new abilities and 3 new upgrades.
This is my second favorite Starcraft Mod(Favorite being Starcraft Revolution Mod), the super units are just amazing, I love using all three via Dark Archon - Mind Control and getting the other races workers. :D I think that every Starcraft lover should try this mod, due to the addition to defense and attack in many ways. :)