Quote: "how many assets come with the engine?
some trees, rocks, buildings characters, etc.?"
It's certainly not as much as GG, that's for sure, but there's enough in the main download to make something very cool. I haven't gone through all of it, but you definitely get the following:
-a default player with pistol, grenade, machine gun, and shotgun
-An enemy character with machine gun (you can change the weapons he has of course)
-Lots of trees, grass, rocks, and bushes
-Various terrain textures (grass, rock, mud, river beds, ocean floor, etc.)
-Some buildings, docks, etc.
-Pickups such as health packs, ammo, etc.
-Lots of particle effects
I know there's more, but not sure of all the exact content yet. I just played with some of it so far. It does come with 2 complete demo levels and one is an entire airstrip with hangars and fences, etc.
System Specs: OS - Windows 7 Home Premium 64-bit SP1, CPU - AMD Phenom II X4 945, 3.0Ghz, RAM - 8Gb DDR3, GFX Card - 2048MB NVIDIA GeForce GT 640, FPSC-R Version - Beta 1.0085