Implicating venom_snake → metal_gear
Link to implication

Reason:

Venom Snake is the protagonist of Metal Gear Solid 5: The Phantom Pain.

Related:
Unalias

• Big_Boss -> Naked_Snake

Alias

• D-horse_(metal_gear) -> d-horse
• grey_fox_(metal_gear) -> gray_fox_(metal_gear) (Apparently, officially spelt with an A)

Imply

• Naked_Snake -> Big_Boss
• Venom_Snake -> Big_Boss
• Quite_(Metal_Gear) -> Metal_gear
• liquid_snake -> metal_gear
• sahelanthropus -> metal_gear_(robot)
• raiden_(metal_gear) -> metal_gear

EDIT: The tag implication venom_snake -> metal_gear (forum #223804) has been approved by @bitWolfy.