A map i am working on at the moment, it is not finished yet. It is for the mod RenX for UT3, not a UT3 map :P I'm not very experienced in UE3 and i havent really looked at the map for two weeks now because the stupid editor keeps 'hiding' my mouse when i double click on an actor to get its properties box up and i gotto restart editor to fix it :(
What I do to get my mouse back is just pan around in any of the viewports. That seems to work for me. Also, a quick hint about screenshots - holding alt+print screen will only take a ss of the active window (so people don't have to look at your start menu).
About your map, it looks pretty good but you're going to run into problems with your water hitting the edge of your terrain like that. How are you going to hide the edge of your world?
UN_rock2 will have "tunnel meshes" you can add to your map. They can also be made by using a 2nd and 3rd terrain info (one flipped vertical). It's a lot of work though.
Video looks damn fine, great terrain work, can't wait to see more.
Yeah as others have said the editor steals my mouse sometimes as well, i also just r.click (usually a hard fast tap) and it comes back, if you really get in a bind hit your windows hot key to bring your mouse back on the desktop.
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#uck the laser pointer .. I use a stinger mini-gun .......