Wouldn't really eliminate camping because people would still want to get enough kills to get that reward whether they die or not. All it would really do is make it easier for people who die a lot to get killstreaks easier. Plus, dying needs to be something bad and not punishing someone for dying is foolish.
as you can see getting chopper gunner or AC would be hard-tier 4 but a skilled player would get them very often which is realistic while a noob would just get to tier 3 (pave low etc) every now and then which is also realistic- and you could reduce the number depending on the game- tier 4 would be like 14 and etc or in a very long game mode it would go higher but i do think killstreak kills should count toward next killstreak
the majority of campers want a kill streak and this way all of them would be wanting to NOT CAMP so they could get in combat and get more kills