Hii there , so I’ve been wondering if you can add the mission pack to alien nations 1 ...
I love this game had the cd from way back but now i lost it ..

I have bought the mission pack seperately for me. Unfortunately, this won't be at all compatible with the GoG version.

Sorry, bud. I'd share an .iso with you, but it's likely against the rules, nor could you do much with it.

Try to grab the gold edition (so you have the base game compatible) off of ebay or amazon. Some places likely still have it in stock.