PS1 Sci-fi flying/shooter game?

[$y$t3MoFaD0Wn]

Awhile ago i had this game for the PS1 that i played quite a bit. I can't remember the name, but it was one of those games where you fly around and go against other aircraft and ground units. This game was about 90% escort and defend missions. I think before every mission, the game gave you the choice to pick what kind of aircraft you wanted, slow and powerful, fast and weak, ect. A feature of the game was that you could swoop down and pick up allied tanks and turrets and drop them off somewheres else, sometimes the game would give you like 5 or so minutes to set up b4 the base was raided. I also believe that at the end of every mission some kind of slipstream or something would open up and you had to fly through it to complete the mission. (i also think thats how enemies got around too). Its been a long time and my memory is a bit hazy, but thanks if you can help me figure this out.