They'll still be foot units. Guerillero stats is the same thing as the Guerilla in the Alpha version, exept it's triggered by Fuedalism, it looks like a modern worker, and it uses the modern workers 'clear forest' animation with the machette for an attack animation.
Guerilla will still look like the Marine and will still be triggered by Nationalism, but will be +1 attack then the Guerillaro and be able to airdrop.
I should have CubMod 1,0 online tonight.