i haven't tried importing my own animated characters, i've been working on this temple in sketchup, converting props and making textures. to make a slender skeletal humanoid animated and rigged and fumbling around with scripting it, a re-tex of an already working gameguru zombie is fine for now (although i really want skeletons with swords).
in 3dgamestudio, i only had to define 'stand', 'walk', 'attack' and 'die' frames for an animated/textured .mdl to work then simply attach their premade enemy_ai script. gameguru is a lot better in many ways but in other ways requires more steps.
this temple is just a test to see how things translate from sketchup and taking notes on what works and what doesn't.
..I have noticed even this low poly temple takes about a minute to load and trying to import a 5k poly model crashes the model importer. Not sure how much more I can do with this software with my computer specs.