It is a common occurrence in special events to have one plane substitute for a plane we do not have in the game. Occasionally, the best substitute plane available would also be used on the opposition as itself. This leaves the event designer in a pickle where both sides are using the same plane, but the side using it as a sub would be using skins of their enemy.
For example, in a Coral Sea design the best substitute for the TBD Devastator is in fact the Japanese B5N - which would normally be used by the Japanese in a Coral Sea event anyway.
What I'd like to see are duplicate plane models added which would normally be hidden - ala the RV-8, but could be enabled by a CM in an event. This way, both sides would have access to aircraft which have historically accurate skins and planes that best fit the capabilities of the scenario at play.
The Japanese side would use the standard B5N and the U.S. Navy would have the hidden duplicate B5N enabled with a TBD skin baked in.