The ITBS has a speed shoot which has a tower that looks something like this:
**************
***0---][******
******][---0***
***0---][******
******][---0***
******][******
******][******
******][******
*****/**\\*****
****/****\\****
**_/******\\_**
**************
(Ignore the asterisks)
One archer each side with six arrows. Start at signal and shoot targets (the zeros above)on your side. When you hit one they shift to the other side (spring loaded). When all twelve arrows are gone the archer with the most targets on their side is gone too. Sorry, I don't have pictures and the representation is a little crude. PM me and I'll see if I can design something on the autocad and e-mail it to you. Happy hunting.
-Brett
P.S. This is a timed event, 30-45 seconds, which really puts the pressure on.