In Rainbow Six Siege, the attacking team controls drones in addition to human operatives. But really, why use wimpy old human meatbags at all?
Eden Lane posted a video in which they won a Rainbow Six Siege match seconds after it started. How? By driving a drone into the hostage area and waiting.
See, Siege matches open with a phase in which attackers — playing as drones — scout the level while defenders set up barricades, barbed wire, and the like. In this case, the defenders' goal was to protect a hostage. During that phase, Eden dove behind enemy lines (and also the hostage) and found a hiding spot.
As soon as the match officially began, Eden re-assumed control of their drone via remote control and started spotting members of the enemy team. This gave them notifications that they'd been seen, which — as you'll notice — made them start glancing around in confused suspicion. "Where's that coming from?" essentially. It's a good idea to take out drones like that asap, because otherwise the enemy team can easily use their feed of information to ambush the crap out of you. It's certainly happened to me.
Eden made sure to cling pretty closely to the hostage, and after a few seconds a member of the opposing team took the bait. They tried to swat Eden's annoying fly of a drone, and the spray of their shot killed the hostage. Match over.
Meanwhile, ACE RYAN decided he didn't need any of that silly subterfuge. He won a down-to-the-wire match — in which everyone else on both teams was dead — by piloting a shock drone up to his one remaining opponent and electrocuting them to death.
So, let that be a lesson to you: Don't underestimate drones, even though they're small, easily squashed, and mostly just annoying. They will fuck your shit up.