Get 4000 Prestige Points

When Playing a mission (any mission), do an alpha strike on the 
Aft right shield, but DO NOT DESTROY IT COMPLETELY - It may take 
a couple of tries not to do this. If you destroy it this will 
not work. Then fire a photon into the front left shield. Then 
hit ctrl + f4 and it will give you 4000 prestige points!

To increase your prestige in the campaign game go to the 
Spacedock and sell all of your missiles. Then select the slowest 
missile engine and buy x4 for a cost of 1) then x3 (at -1, 
giving you your prestige point back), then x2 (for another -1) 
then standard (for another -1). Go back to x4 and repeat, going 
for as much prestige as you need. This will not affect your 
career prestige for gaining rank, but it does allow you to 
purchase that much needed upgrade.