About the stuffs who will be added on the new Headcrab Mod, I'm going to add the fast and the classic headcrab (fully functionals). The objective here is to recreate all headcrabs from Half-Life 2 with their models, health, speed and capacities for Counter-Strike Source ! The zombine model will also get his original animation rather of the default CSS's one.
For the version 1.2.0, I think that I will add Gonnarch as the boss headcrab. In fact the 1.2.0 will have all Half-Life 2 headcrabs, and to win the game, combines will have to eliminate 50~100 headcrabs to spawn Gonnarch. But before you can kill him, you will also have to deal with his guards (the current boss headcrabs !).
Anyway, thanks for reading this and for killing crabs !