ambuscade
ambush
assail
assault
astonish
attack
blitz
catch off-guard
catch unawares
come at
come down on
come from behind
come upon unexpectedly
crack down on
descend on
descend upon
do the unexpected
drop in on
fall on
fall upon
gang up on
go at
go for
harry
have at
hit
hit like lightning
jump
land on
lay at
lay hands on
lay into
lie for
light into
lurk
mug
pitch into
pounce upon
pound
pull up short
sail into
scupper
set on
set upon
spring a surprise
spring upon
strike
surprise
swoop down on
live
make
wait
work
bushwhacked
bushwhacking
bushwhacks
bushwhacker