I love this one, it's always working or..."All REDS bomb rush to my warden markers and AFK/AFM in them"
Make the REDS go to a few warden markers
"AFK/AFM"
Place another warden marker. Anyone who goes to that warden marker is KOS (And this gets A LOT of REDS).
That trick order is a simple one but it works.
Bombrush to BLU Side in Knifepit and AFM, AFM
... 5 secs later..
This is a warden marker, AFK AFM