Texture question - How can i make the window opaque from the outside?

[Frakin Toasters]

Hey there, i'm a huge fan of the Doragon from Battlefield 2142, and i'm quite a proficient texture artist. So i'd love to try my hand at making some textures for Black Shark.

 

I thought it'd be quite fun and original to create a PAC texture for the Ka-50, and as an experiment i was wondering if it would be possible to make the windows of the chopper opaque metal from the outside, but so you can still see out from the inside. The PAC Type 4 Doragon has an armoured canopy, with a holographic projection of the world around it on the inside.

 

Would this be viable?

 

Thanks for any suggestions