>place an alert trip wire by a barrel early in the mission
>get a hit marker and hear a distant boom from across the map minute later

>put a dark dynamite satchel in the middle of the boss lair
>string multiple alert trips together because the blast radius is so big
>there's usually so much shit on the floor players rushing in to get the token don't see it

>find a boss lair super early
>very carefully sneak around the compound without trace and leave concertina and poison trips just inside the doors to the boss lair without alerting the boss
>sneak off elsewhere and wait for a few minutes until the first team walks right into them

>can't aim for shit
>pray and spray enemy players
>try to rotate into positions they've already been in
>drop trips mid-combat and bait them to walk into those spots

>take a sniper position, towers in particular
>leave a dark dynamite sachel and alert trip at the entrance
>stay down when/if I get shot
>wait until they come to loot me and walk into the trap to necro
>loot them instead, burn and camp the body

It NEVER gets old.