That tank can see everything unlike other tanks, if shoots extremely precisely compared to normal panther G, etc. What in hell is that monster?

Also, what does "Uhu" stand for? I want to know because I never heard of that type of panther before Spwaw.
Oh, on the side, anyone knows if there is a demo mega campaign? I'm still curious to see what are those mcs. I don't want to spend so much money on a PIECE of a game, not a game itself, and find out I don't like it. Would be fun to have let's say a 5 turn mc, or something on a small map with a few strategic points to conquer, like a mini portion of one of the existing mc.