Hmm you're a keeper that's for sure. Let's try to stay on topic but I am definitely a nerd, rotfl sure.

Wow, thinking about what you said twice I can probably right a whole essay about how mentally ill you must be but I won't, I'll just write a summary of what it'd look like okay .

1. "How can you do research..."
--Let's see, you can first of all type in a bunch of things regarding air support during the cold war or air support during war history . You can also simply research a bit about the cold war in general.

2. "..when the kill streak system isn't realistic at all..."
--ROTFLZ0MGYOUNUB! Here's a bit of review for you based on the MW2 kill streak system.

---UAV--This is a remote controlled piece of equipment used in real wars to spot enemies using thermal/heat energy which is also used in some cameras(for example on railroad cameras which at one point in my area was used to spot a drunk walking on the train tracks that was almost killed by a train but was saved by a nearby officer thanks to the cameras )
---Care Package--Simply a package of supplies needed by soldiers in combat. This is one of the easiest ways to get the supplies to the soldiers in need of a certain supply(food, clothing or ammunition).
---Counter UAV--Simply makes it so you do not show up on enemy radar which was used as early as WWII I believe using chaff(a material that makes you undetectable on radar)
---Predator Missile--A remote controlled missile used as early as the first Afghanistan war(1979-1989)
---Sentry Gun--A gun that is automatically aimed and fired at targets that are detected by sensors(This is real too )
---Air Strike--I don't think I need to explain this much but I will just for you. Three F-15 fighter planes drop bombs on a designated area in order to take out a group of enemies.
---Attack Chopper--Mi-28 Helicopter that shoots down enemies from the sky with automatic weapons.
---Harrier Strike--A hovering F-15 fighter jet that shoots at enemies similar to the Attack Chopper but does not move in any similar ways.
---Emergency Airdrop--A cargo plane that in real life would drop things such as tanks and other armored vehicles but in this game drops four care packages(refer to the care package for more information)
---Stealth Bomber--Big fighter jets that make minimal sound and down their bombs a bit different then regular fighter jets simply because of it's stealth.
---Pave Low--Sikorsky MH-53 nicknamed the Pave Low or the HH-53 "Super Jolly Green Giant". Low level, low range, undetected penetration into denied areas, day or night, in adverse weather, for infiltration, exfiltration and resupply of special operations forces.
---Chopper Gunner--This is almost the same thing as an attack chopper except you are controlling it.
---AC-130--A big plane which contains multiple weapons-for the most part, one massive explosion weapon, one semi-explosion weapon and one automatic weapon(not just based on MW2)
---EMP-Short for Electromagnetic Pulse. This can disable electronics and kill people with-in a variation of ranges depending on how big the bomb is.
---Nuke--An atomic bomb that can take out enemies in a variation of ranges depending on it's size.


GET PWNED YOU NUB!

you're so retarted man, i didnt mean the mw2 killstreaks arent real, im saying the whole game in general is unrealistic as of damage and perks and everything. and you just proved my point. you just wrote me a ****ing essay as a comeback. nerd.

I think they should go back to basics and have,
3 kills = uav
5 kills = air strike
7 kills = helicopter
but if they do have customizable kill streaks (which i seriously hope they dont) then they shouldn't be overpowered cough chopper gunner cough. there should be no nuke and definitely no care packages because they give people who dont deserve chopper gunners and pave lows etc just that. If they are not good enough to get it on their own then they shouldn't get it at all.

SR-75 (i think it is called that) will be replacing the ac130 (this has been confirmed at E3)