I have a similar issue. I’ve been able to get a minimap to track players using a SceneCapture2D and an overridden OnPaint function with some fiddling, but i don’t think that’s the correct way to do rotation. If you figure out how to make markers rotate please let me know.
Basically what i have is a camera with an orthographic scene capture at 0.0.1000 that feeds a picture to my map widget. Then i get transforms for all of my players and send them from the server to all the clients. Those transforms then go into the OnPaint function of my map widget where they are converted into 2dVectors for the locations of the players on the minimap. Calculate mark location is a simple mathematic proportion, where 500 is my widget side size and 12000 is the ortho width of the SceneCapture2D. ±250 just make so that markers’ coordinates start in the center of the minimap and not in the top left corner.
For a single-player game there would be a lot less fiddling i imagine but this is what i have for now.