Requesting tag implications:
ace_combat_2 -> ace_combat
ace_combat_3 -> ace_combat
ace_combat_04 -> ace_combat
ace_combat_5 -> ace_combat
ace_combat_6 -> ace_combat
ace_combat_zero -> ace_combat
ace_combat_x -> ace_combat
ace_combat_x2 -> ace_combat
ace_combat_assault_horizon -> ace_combat
Reason: ace_combat as umbrella term.

Why is it 04 and does the first game already have it's own tag?

Log said:
Why is it 04

Official title

and does the first game already have it's own tag?

There isn't any. If there are arts for the first game, I prefer air_combat more.

Did:
create implication ace_combat_2 -> ace_combat
create implication ace_combat_3 -> ace_combat
create implication ace_combat_04 -> ace_combat
create alias ace_combat_4 -> ace_combat_04
create implication ace_combat_5 -> ace_combat
create implication ace_combat_6 -> ace_combat
create implication ace_combat_zero -> ace_combat
create implication ace_combat_x -> ace_combat
create implication ace_combat_x2 -> ace_combat
create implication ace_combat_assault_horizon -> ace_combat