Easy ones:
Mirror armor. Mirror shelter.
A dog with zapper on him (Imagine him running around the playing field and people running like all bejeezus to get out of the way:) )
Hard Ones:
Surveillance Cameras around the playing field with a base commander to point and shoot them.
Proxy Bombs that include a flashbulb for extra suprise.
GPS tracking of team members on your pda.
VERY Hard ones:
Some kind of huge freakin' Death ray. I dunno maybe something that sprayed you with tuna fish.
Slashdot Mirror
Easy ones: Mirror armor. Mirror shelter. A dog with zapper on him (Imagine him running around the playing field and people running like all bejeezus to get out of the way :) )
Hard Ones:
Surveillance Cameras around the playing field with a base commander to point and shoot them.
Proxy Bombs that include a flashbulb for extra suprise.
GPS tracking of team members on your pda.
VERY Hard ones:
Some kind of huge freakin' Death ray. I dunno maybe something that sprayed you with tuna fish.