I`m just starting but my problems were not choosing battlegroups or units but actually using my mouse, clicking correctly so the units appear on the map and zooming in, and moving the camera around the battle field. It's so important if you need to find cover. Right and left clicking is difficult when selecting and placing units and choosing targets is sometimes a pain as you end up moving the unit instead of it firing. I`m surprised no one has this problem. Can anyone point me at a good tutorial that covers this aspect in detail? I'm losing games because units I thought I had deployed don't turn up in the game. Thanks