Jose would be too much to ask that blender armory have an asset store as unity for the creation of video games like sniper dinosaurs
You can always create an account and download free models from Unity.
As this point I don’t think Armory needs to touch this. There are tons of sites out there with free and paid models. Both 3D in general and Blender specific. Blendswap and Blender Market just to name two.