Enter your name as "THE DIDY MEN" (with spaces, no 'RETURN') on the enrollment screen. Click on the Colonel icon and press 'RETURN'. Select the battle area as normal and select mission control. Accept a mission (without selecting one) then go back and select a mission. Now start the game and play as normal. When it comes time to land simply press 'ENTER' on the numeric keypad and the plane will land automatically.
To fly any mission with infinite weapons simply enter your name as "CIARAN" on the enrolment screen and press 'RETURN' then load up your pilot's log. The name should now read "OCEAN OK". Proceed as normal from thereon.
Set up your mission as normal but do not enter the weapons selection screen. Now when you start your mission you will have unlimited Thunderbolt missiles. Fire away!
When you get killed on a mission, instead of restarting the game, wait until the 'Service Terminated' screen appears and reset your computer. Reload the game and your pilot should be intact.