Here's a few weapons I did for ArmA:
All done in Blender, I prefer it to 3DSMax and Maya.... plus i'm all for open source.
Currently looking to build a decent Mig-29 for flightgear once I have some free time. Got all the reference material
It would be better to assign it to the DCS.exe under "program settings" tab... otherwise your turning on AA globally. Which might not be a good idea for other games.
Have this bright idea to try it...
...but I guess the blades are just too big lol.
The thing was moving though... so maybe its possible if its stationary.