Are you saying mounted combat will be available before the DLC, or is the 1.6 patch just the patch that prepares the game for the DLC (which will enable mounted combat)?
Also: Do you know the dates for the patch or DLC?
Thanks.
Mounted combat has been available for a while to pc in 1.6 beta, a week maybe. Horse archery is the best bet- hopefully they will refine it because the horse cannot engage enemies competently unless they are in a 90 deg fov in the front, beyound that its iffy and your camera can interfere.
I havent tried 2 handers since i dont touch them, but it should be easier to use them with the longer reach.
Signs point to that being fully released way before dawnguard.