This scenario is again a race against the clock, but you shouldn't really have much trouble. Teleport would be incredibly handy. Either way, make sure you plan out people's routes before the scenario, and then select their troops to counter whichever units on their way.

The flyers head straight down, so you might want to take archers to the west. The general roughly halfway up, will head east to block off anybody travelling up the left-most routes, so take some soldiers that way.

Lanford and Landius have a couple of fights near the top, but don't be too concerned if either of them get defeated. There really is nothing in this scenario that's too tough, except for Goldry and his rogues - they're pretty fast, so weaken them with archer sif you have them.