These mods are Half-life 2 mods. One that has the single player portion and another mod that has the multiplayer portion.
This will be the first entry of the 5 part series.
This Mod will be a Survival Shooter. As in it will have some zombie surviving parts and some human killing parts. Players will be forced to think like a survivor for the zombie sections because the zombies overpower you. During the human killing parts players will have to think as if they were actualy getting shot.
A+game Studios website http://aplusgamestudios.weebly.com/