Is the Cougar compatible with the 3050 omni parts?
Not explicitly, no. Should be pretty easy to mod though. The arms have several points where a jewelers saw will be able to get in no problem, and then the missile covers should serve as a great starting point for several other mods.
The 3050 parts just don't really fit in with the shoulders of the cougar, it just doesn't make a ton of sense.
It's all good, I really like the look of this mini and can't wait to get a couple. I think I can easily add PPC barrels to the arms
Should be very very easy :)