Security Guard is an enemy encountered in Red Faction 2. They are the guards of the Commonwealth Security Services.
Their appearance is that of a man in blue and grey padded armor with a steel chestplate, commonly seen wearing a black footballer-style helmet. They make up the primary enemy of the first few levels of the Public Information Building chapter.
Security Guards are quite easy to fight. They wield sidearms such as Pistols and Machine Pistols, and may dual-wield them for better firepower. When you initially encounter them in the lobby of the Public Information Building, some will use Grenade Launchers. If you manage to get up close to a Security Guard that is wielding one, he will switch to a Shotgun. Since some areas of the mission are in close quarters, it's best to use Dual Machine Pistols to take them out.