The 3rd servo input from your transmitter controls pin 2 and 3.

Connect a relay between pin 1 and 2 or 1 and 3 for weapons functions.

A flip function maybe obtained by connecting pin 2 OR 3 to pin 5 the flip control is now from your transmitter ..... or as stated in the literature you can connect a tilt switch between 5 and 6 and your bot will automatically decide which way up it is .

I think thats right ....