A

• [+] Aperture Science (7)

B

• [+] Black Mesa (8)
• [+] Black Ops (5)

C

• [+] Combine (8)

F

• [+] Factions images (8)

H

• [+] HECU (7)

R

• [+] Race X (3)
• [+] Resistance (8)

X

• [+] Xen (4)

A

• Aperture Science

B

• Black Mesa
• Black Mesa Personnel
• Black Mesa Science Team
• Black Mesa Security Force
• Black Ops

C

• Citizen
• Civil Protection
• Combine

H

• Hazardous Environment Combat Unit

M

• Military Police

O

• Overwatch

O cont.

• Overwatch Elite
• Overwatch Soldier

R

• Race X
• Resistance

T

• Template:Affiliation infobox

X

• Xen