The Battle Of Yenwood Field Units Question

[Eguzky]

Is the Arquebus units the ONLY unit I can get for the scripted event preceeding the on-screen battle (Which can include Ogres and Archers from the expansion) without owning the expansion?

I can't afford the expansions (Even discounted ) so I only have 1 option during the scripted event, leaving me a huge mass of soldiers I have to fight?

If I can't get non-expansion options to deal with all 3, or at least 2, of the scripted options...That feels kinda cruddy. It's basically saying 'You can make it easier if you pay us for the expansion!'

I've googled around, and everything says to use the ogres (from The White March Pt 1) and the Pathfinders (from The White March Pt. 2). Nothing mentions any alternatives to those two.