Warhammer 40,000: Dawn of War/The Chapel

This map is also divided into two parts, this time by a chasm. You must storm the chapel (marked by an objective marker up north). There is a secondary Marine base on the other side that you should secure first. The Chaos base is north and west, behind the chapel; I think you're not supposed to attack it.

First of all, don't sweat about the eastern base under siege. The siege is pretty lame and you can take control of the base anytime you want with only 1 Assault Marine Squad. Move them to the Relic site and double-jump to the base, ignoring any enemies never mind how many. Now, to control the side you start at.