why does it regenerate naturally?
How come aliens health will regen even if the team doesn't have the upgrade?
Aliens already can maneuver and flank around the map much better then the marines.
Marines sometimes need to use risky game play elements to help map control. Like the phase gate which can turn into a meat grinder. The beacon is bad also because it put your entire team in one room. Which allows the alien team to swarm and gain entire map control.
At least make the alien have to research regen and evolve it to have that or make them fall back to a gorge. Also I dont think the hive should heal. Thats is what the gorge and crag are for. If u stand next to a hive u gain health also. WHY?
Also i dont think the creep should slow down the marines. There slow enough already imo.
aliens just have a straight up edge in strategic gameplay. They never have to worry about there health!