Information:

Name: AI Marines
Difficulty: Easy/Medium, Hard (When on a turret or in groups and squads.)
Connections: None
Summon: SmartMarine, TurretMarine, SmartMarineMGTurret, SM_NoCrouchZone, VanillaRifle
Melee: Yes (Rifle swing, can also use berserk packs if they get in their inventory)
Distance: Hitscan (Rifle), Projectile (Grenades and turrets)
Type: Human, Military
Brightmaps: No
Actor modification: No
ACS: No

Description:
A Doom NPC with a brain for a change. They can do dozens of different things, such as avoid danger, work in groups, move in squads, dodge projectiles, take cover and so on, can easily be used as allies by being set to friendly, have multiple weapons, including turrets that both they and players can use, and are highly customizable. For more detailed information on all the stuff they are capable of (A lot), and how to properly and fully use them. Check the included Document.txt file.