Ok so this isn't really win, but it's kinda funny how it turned out. It just happened to a guy named Fatgary (sorry I can't remember your name lol) and I on Operation Archer, PRTA server.
While investigating a possible cache location, we lose our car in a ditch, but also take out a lonely Taliban near the mouth of a cave. We go in and behold, there's the cache
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just as Fatgary puts C4 on it, we hear a techie arriving above us. Uh-oh. While we decide what we, a combat engi and a sniper (I picked it up), can do to get out alive of a cave on foot with a techie sitting on top of the mouth of it, a SECOND techie arrives.
At this point we forget about leaving the cave. The taliban probably thinks we didn't discover the cache since it hasn't blown up yet, or they're delaying investigating for some reason, so we just sit there staring at the entrance.
A few minutes pass during which we tell our teammates that we're sitting on the cache with 2 techies on top of us. For some reason the chinook pilot, who had already lost 2 helos within minutes of spawning them, thinks it's a good idea to land on the techies and gets destroyed for the 3rd consecutive time.
A couple more minutes later, I decide we should blow up the cache anyway, so that the taliban will think we put the C4 earlier and triggered it from afar. The plan works, as nobody comes down to investigate the explosion. But a few minutes later, a Taliban comes to reload and Fatgary has to kill him. The 2 techies above rev' their engines, and we're thinking, 'this is it'
But before anything can happen, a friendly Mercedes comes to the rescue
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for some reason 2 of the guys get out and promptly get shot down by the .50 cals, while we run to the car and make a shameful retreat (tbh I was too busy laughing to ask if they even had a medic to save them).
Anyway, this might not sound funny at all, but to us it felt pretty epic at the time. We literally spent 10 minutes in a cave, sitting next to a cache rigged with C4, with 2 techies sitting on the roof of the cave.