Capture Points

The capture points were less useful in the previous Dawn of War titles than they are now. When you capture certain points you receive certain benefits. The Relays will help you get reinforcements into the squads when you have members that have died.

Key geographical areas will also be able to be captured and give benefits later. Eventually you will gain benefits through research done on them which will be persistent throughout the game.

Of course once you capture a geographic location the enemy may try to come and get that area back which means you will need to defend the area or lose any extra benefits you were gaining from the control of the area. However the research effects would still stay in place.

Terrain

There are multiple levels of terrain that can be used in various ways. There are actually line-of-sight rules in the game now that allow for terrain and items to block the field of view of units. This will allow you to use it terrain to your advantage, or allow the enemy to do the same. The environment is completely destructible and craters can be created that can then be used as cover. When I asked about multiple levels of deformation in the terrain itself I was told that you could through a satchel charge, make a crater, throw another in there and deepen the crater or extend it. As a form of tactics this could work to basically allow you to entrench troops in one area where there was no previous cover available.

Everything in the environment from the trees and rocks to the cover can all be destroyed in various ways along with the deformation of the terrain itself.