You talk about something you don't really know, and that's sad. Maybe you should get a life, first, then talk about things you really understand.
BTW, the model is only 58 kb, plus the texture, about 750 kb x2. That's about a 1.5 megabytes. That's pretty average, or maybe it's too big for you.
The final model in X9 with all the files(fpe,dbo...) is like 1,7 megabytes. OMG, now that's too much!
(add another 750 kb if you want a diffuse texture, so, 2.5 megabytes!)
Most important, you can use the same textures for different models, so
even less space.
Ah, WIP means Work in Progress, in case you don't know.
Here's a screen with 10 nebels at the same time (with a random 512x512 texture), something that will probably never happen in a WW2 game. FPS? 33.
Let us work, there's always someone who doesn't do anything that criticizes what he can't acomplish. I'm pretty sure most people will be glad to have this kind of models.