This mod will add around 100 new maps, new units, possibly a new campaign and will change things in game,for example: Zerg Larvas can be moved around like a normal unit. There aren't gonna be any population restrictions! Build masive armies like never before! It will require Starcraft Brood War 1.51.1 to play.
You can upgrade workers (probe,SCV,drone) attack now. I hated that Blizzard didn't add this.