I remember trying to play MW2 multiplayer and I felt like the kill streaks didn't operate the same way they did in single player (god the single player was incredibly unenjoyable in those games for me, seemed like everything was meaningless yet they were trying so hard to make it emotional and "this is important" without actually doing that). Even if they did operate the same as single player they could have made a training mode where they make it faggotily realistic (every CoD player's dream was for all games ever to be faggotily realistic, even though the games were ever only selectively realistic) and you walk into the hangar and take up planes and helicopters and all that.
I think you could go into splitscreen and kill another player to get the kill streaks, but that would take still too long to fuck around with all the perks/kill streaks (AND I think they had to be unlocked first by going online) and i just gave up; I sure as hell wasn't going to play online and experiment with all that bullshit. fuck, that would have drained my life. I put down CoD as a whole in 2008 or 2009 and never went back, and I think had they had a training mode for using the kill streaks it would have been a more enjoyable experience and I might have kept playing. Kinda glad they didn't in hindsight because i had cooler shit to do than play a video game.
did they implement this training feature in later games?