I really hated this chapter. I'm just gonna say it. This chapter was awful. If it weren't for the time limit, I would've never finished. I've also stalled since I finished it so I may have forgotten some details.
Anyway, Hector and Eliwood took down the forces nearest to then while Marcus killed the Brigands, destroyed the Snag and visited the village for 5000G. Hector defeated the Mage and Myrmidon coming from the west and held off the southern enemies while Marcus and Eliwood fought in the north while Oswin and Lowen tanked.
And that's pretty much it.
Hector is level 11, Eliwood is level 6, and Marcus is level 2.