I was thinking what about a dogs of war army combining amazons, albions and tilea (pyke and shot) units and mechanics. 4 LL one in amazonia, one in albion in tilea and one in estalia ( sartosa and something else in vortex campaign). Every faction can recruit other type of units, but his own units would be cheaper or buffed. Mechanics such as pirating trade routs and getting hire to attack certain factions in exchange of gold, units, items or maybe diplomatic options as peace ( if they were war with them before). They should make contracts and gain reputation if they are completed. If they capture a city but refuse to surrender to the outsourcer would lower their reputation, with lower reputation having harder to change anymore to get better contracts.
In a such way albion and amazons funs will be happy to, cheaper to make, less balancing of one race instead of 3 separate races.
What do you think?