On the Call of Duty games , what is " boosting" .
Boosting is when one person has tactical insertions while the other person kills him many times over and over
hacking i think
two members of the opposite teams, team up so one can kill the other as many times to gain kill streaks & whatnot.
When you and someone mostly a friend go to a corner or certain spot and use tactical insertion and you kill them repeating hence the word "boosting" mostly done in infected