Mosty because Airmech is a blend of MOBA heroes and RTS might be a good idea to do some bounties that showcase units with specific mechs in missions styled to show its use and how to counter it. A stage I have in mind is for are Rebels where you can send them in swarms to capture a base and for the counter is to use necros to reuse destroyed rebels as a punish method or use gatties to quickly deal with the infantry that can spawn
#Unit showcase bounties
agile robin
agile robin
maybe even Gorgon missions where you're in a 1v3 and you're forced to build gorgons due to the aggressiveness of the AI to target your units and use counters like big mines or high pen units like long horns to take incomming ones down or to take the out the ones present on the map as neutral units