There are many types of kill streak rewards in "Call of Duty: Black Ops 6". When you kill multiple enemies, you can get the kill streak rewards, and RC-XD, the remote control bomb car, is also one of them. There is a kill streak reward, and the function of RC-XD is to allow you to remotely control a car equipped with C4 high-explosive bombs.
What is the use of the bomb truck as a 6-kill streak reward in Call of Duty 21 Black Ops
RC-XD
The remote-controlled bomb truck is an icon of the Black Ops series, and the RC-XD is no exception. It allows you to remotely control a car with a C4 board attached. C4 plates can be detonated at any time, killing all nearby enemies within the radius.
The RC-XD is an excellent tool for breaking through enemy bottlenecks, as they usually don't expect to be attacked by them even if there is a voice call. It's very fast, so while it can be destroyed by shooting, by the time enemies see it it's often too late to stop the explosion.