RTF is a global modification that replaces all towns in the game.

So, you choose either one cell or four? I don't quite understand...

Yes, it doesn't depend on the model size; you can change the CombatSize in the peasant's characteristics from 1 to 2, and he will stand in the center of four cells, remaining as small as before, or you can set the leader to 4, or the Rakshasa to 1.