Well, my players had a job that said they had to get data (from a datachip in a secure vault in a corp HQ's subbasement.) So, they managed to get in without tripping the alarms, but in the subbasement there was a standing guard: two regular and one lieutenant level. I was expecting a nice little fight.
The street samurai - timing it with a concert playing next door - hit the guards with a High Explosive grenade from his Ares Alpha. They were surprised, none of the guards near enough (there were plenty) detected the boom. So they killed all but the lieutenant, who was dropped by an arrow from their mage immediately thereafter. They opened the vault and grabbed the chip (half the sensors were off due to the concert next door.)
So I decided to have a patrol show up. Four guards (later reinforced to eight due to noise drawing them.) These guards caught my players by surprise, and the decker and the mage were injured quite severely, relegating them to taking cover behind a heavy desk. Over the course of the rest of the fight, the street samurai - again turning to his Ares Alpha - fired his remaining HE grenades at the guards. Who were hiding behind load-bearing pillars that were the best cover in the house.
Just as the last couple bad guys were turned into little squishy pieces, I decided to calculate damage to the pillar. My math may have been fudged a bit. Or a lot. But I had a section of the roof cave in on the samurai, who had been moving around the room to give him a better shot at the guards.
While the other players - who were under a big desk to the side of the room - didn't get hit, the street samurai (an elf, so fast, not tough) was hit by several items including a bathroom sink.
The party managed to limp their way out of the ruins before the HTR teams showed up. They had the data. But they spent quite awhile healing up.