CoD =/= all FPS true statement, however, CoD > all other FPS ;-), also a true statement.

They do have it made so you can not get tactical insertion till a higher level. However, the one boosting is not the one who needs to the tac insertion, it's going to be the person who is helping you boost. It's not a mechanic of the game, its a loop hole to the leveling system. Again, what they do in their own lobby is fine, but its what they do in public lobbies with people pushing their own abilities that makes it an issue.