Rebel

Rebels are the vast majority of the Resistance faction, former citizens of the Combine cities that have begun to fight against the Combine rule.

Overview
Rebels are rarely seen up until 'Highway 17', where they then become the most common non-Combine units in the game. They team up with Gordon whenever they see him, and fight alongside him wherever he goes, fighting against Combine, Xenians, and other such foes.

Rebels use a wide variety of weapons, ranging from small arms such as the CZ52, to heavy duty rifles such as the Dragunov. Early in the game, they prefer to rely on smaller weapons, such as the MP7 or the Grease Gun, later switching to larger, tougher weapons like the AK-47.

Rebels fight in a similar manner as Combine Soldiers; often working in groups, covering each other while moving from place to place, firing their weapons either in bursts or full-auto depending on what they are equipped with.

Rebels occasionally pick up new weapons off the ground to upgrade themselves, such as replacing an MP7 with an AR2. In addition, if injured, they may occasionally pick up medkits off the ground to heal themselves, only if said medkits have not been touched for a moment, though.

Compared to Soldiers, Rebels are not very efficient; they're more fragile, less accurate, can't throw grenades, and get overwhelmed very easily. Still, Rebels can be effective against their opponents if they are in groups, and can be considerable threats if they are armed with proper weapons.

Tactics
-Rebels will fall apart very quickly alone, since they can usually only handle a few shots before perishing. Try to keep them in groups if possible.

-While fragile, Rebels armed with powerful weapons, such as the Karabiner or the Garand, can be valuable allies to have around, though their accuracy often leaves much to be desired.

-In groups, Rebels can be effective distractions against enemies, unless said enemies are armed with hard-hitting rifles, such as the aforementioned Karabiner.

-Rebels tend to struggle if enemies get too close, Headcrabs and Manhacks, for example, can prove to be an issue for them, unless the Rebels are equipped with shotguns.

-Remember that Rebels are able to heal themselves with medkits on the ground. If you don't want them to take any medkits, or perhaps wish to heal a Rebel later, try to pick them up and bring them with you to prevent the Rebels from grabbing them.