@lostclimate :
So avoid the engine to interpolate is better. And i perfer to have my real animations, smooth and entire.

Let's talk Uniy: in the panels you can import directly any Blender model by (it is converted automatically by Unity in FBX format , and i've imported successfully an animated model and it's texture from Blender.)

For A7 : Yep Ventilator plugins is just great !
You import your model as it is with it's textures, what i don't like a lot is that this plugin don't like hard edges and you have to separate them.
Well specify the intervall instead of frames manually is just very needed
Blender 2.49 have already in it the plugin from Ventilator to export to A7 MDL.
I've not tried the level exporter from Blender with Ventilator plugin, perhaps tonight : caus exporting characters animated and levels directly from Blender : means LOT BETTER WORKFLOW , you directly go to WED or GED (no more MED) !!
But it's For Blender users only !!