importing mesh into udk (with collisions)

as part of research for my game i have learnt how to import mesh from max in udk, i have researched two kinds of collisions the first of which is auto collide. first export the object you want in max by selecting it and exporting it as ASE, once exported open the content browser in udk and click import , select your model and import it, right click your model in the content browser and go to edit mesh, in edit mesh there is a tab called collisions, scroll down to the bottom within this tab and click auto collide, finally select how many divisions you want the collider to be broken into and press except (f1)

f1

for buildings you will need to add box collisions within max, to make a box collision first make a box and name it UCX. now just place them behind the mesh you want to collide (make sure they dont touch the mesh its self) once done export into max, your object now has invisible box collisions.

f2

objects in the content browser

my objects in udk