Command & Conquer: Red Alert 2 Tips

Make your allied MCV indestrucible (WITHOUT IRON CURTAIN)
If you're like me and you end up getting distracted during your game and all of a sudden you have 4 or 5 Kirov airships heading towards your MCV, have one CHRONO-LEGIONAIRRE standing next to your MCV, and if those Kirov airships get too close hold down the Ctrl button (so you can target your own troops) and instruct the CHRONO-LEGIONAIRRE to attack your MCV. Dont worry, if is only one CHRONO-LEGIONAIRRE who is not upgraded at all then he will take ages to remove you MCV. In the mean time your air defence can take out those air ships and any bombs they may drop on your MCV will do absoloutly nothing! This one really works.