Make regular checks on the outside view to check your engines;
if your co-pilot has been hit you don't get any warning.
Fuel leaks can be critical to the success of a mission.
If necessary you need to turn off an engine or two and drop out
of formation to conserve fuel. If your engines are on fire point
the nose at the ground and try diving at between 350-400 mph -
this is useful in later levels when one fire extinguisher per
engine isn't enough.