Heh, coincidentally I’m also working on the camera as well, deriving my camera behavior off of the Strategy Game sample for my own RTS.
So far, what I’ve got:
-You can zoom the camera in and out with the mouse wheel scroll
-You can pan the camera around by holding the middle mouse button
-In progress: I want to lock the mouse cursor position when panning around, it shouldn’t move until MMB has been released. Its turning out that I need to make some changes to the player controller code and viewport code within the engine to make this happen. Sheesh! I’m hoping maybe I can submit my additions back to Epic for inclusion in the next engine release, but we’ll see if they’ll take it.
-You can draw selection boxes with the left mouse button
-Right clicking gives a selected object a movement command