You don't want to see anything above VSAT in TDM, the game would end pretty much immediately after it happened with a crushing victory for the team the guy who got it was on. Hell, you don't want Stealth Choppers, either.
In Kill Confirmed that stuff is fine because you don't win unless you get the Dog Tags, so the random kills from the higher end Kill Streaks usually end up contributing the to score of the other team as they collect their own teammates dog tags. I couldn't imagine even wanting to see that stuff in TDM.
If you want to play with the power tools of the game, it's pretty easy, load up Kill Confirmed. It's like TDM, but with Scorestreaks.
Some objective game modes put a heavy emphasis on PTFO so scorestreaks are much easier to get there. It's been like that before BO2, except some players would abuse the objective instead because they can't get them in TDM. That's why the number of MOAB (MW3) videos on YT on TDM are outnumbered massively by those who get them in KC and Dom, sometimes losing and quite badly at that.
I call bs on your steath chopper getting you another Stealth chopper. it would need about 39 kills alone with hardline. maybe it helped you get another SC.
TDM could probably do with either increasing the score for a kill to 125 or make the points limit higher. Hardpoint is a really good game mode to run high end scorestreaks. You could just capture the hardpoint, let the enemy take it off you, kill him and recapture the hardpoint over and over again.
For TDM a Stealth Chopper is a fine choice. I wouldn't want too much emphasis on streaks though unless there are great ways to deal with them at lower level unlocks or the default class.
Score streaks are fine. They are hard to get because they are so good. They absolutely destroy when you get them. Either get better or run Carepackages so you can have a chance at rolling for a high SS.
Earlier I joined a game where the enemy team had a swarm/dogs/vsat all at once... insta-leave.
You can get the high kill streaks by camping but whats the fun in that? i find it pathetic when people do this is domination just sitting in one spot waiting for kills with no captures or defends
the highest streak I've earned is the stealth chopper but to be honest I've got a curse when it comes to high streaks in all cod games if I keep them low I play great but as soon as I put something high on I can't hit a thing mw 2 was the worst for it as soon as I equipped the nuke that's it I couldn't get 7 kills to save my life
I am an avarage player with a K/D of 1.02 and I can get the swarm when I need to.
I only got it 4 times since release date (maybe 10 or so if you count care package) and it is do able.
It is a bit of a luck issue though. I've can get it by backing up my team and only going for the objective if I am not alone. keep close to your team mates to keep you alive.
I do still want to see a bonus playlist with just 3 scorestreaks.
UAV+hellstorm/lightning strike+stealth chopper.
This may be the only reason why I would want to play CoD4 again.
Simple answer - set care package as one of your scorestreaks and run engineer. I have re-rolled several care packages and wound up with dogs, escort drones, orbital v-sat, VTOL, and even swarms.......easiest way to get the higher scorestreaks if you struggle to string the kills together.