Seal789: hello was playing this game and I completed the first mission how do i save?
I go to the next mission it seems i'm doing the same one
It is a good idea to post in the game specific forums for future reference but I did check the manual the game comes with to see if the info was there.
When you return to base you need to go to the barracks. There are eight bunks there. These are each used for game saves. The manual didn't spell out exactly how you use them but I imagine you just click on them or something. It is probably obvious once you are there checking them out. So I would go do that after each mission.
I just got the game myself but haven't installed it yet or else I'd be able to be more specific.
I hope that helps. Otherwise though do try the game forum which is confusingly Wing Commander Privateer for all the Wing Commander games and somebody playing it can tell you more if need be.
Enjoy the game!