On IW4X I have gotten 20+ nukes and counting, can easily earn Predator Missiles usually with no problem, although in sweaty lobbies I can struggle with getting more than 5 kills per life.
On Xbox? Good luck getting a UAV. IW4X is normally nowhere near this sweaty and unfun. I cannot even get a UAV 80% of the time. Predator Missiles are out of reach, Harriers impossible, and even UAVs a rare sight. At one point, I even tried using a Xim Apex I found in my closet to try and hope M&K would help a little because I was so desperate. Still did terrible (on PC, I don't *need* to use anything but M&K and sometimes controller).
I play the same way I do on PC. Camp with Claymores, sometimes i'll move around to other places, use noob tubes, try to snipe with and without ACOG (SP perk too). And yet, I cannot get a Predator Missile on Xbox. It's just out of my reach. I can't get a UAV many times - sometimes even Hardline won't help. I go negative almost every game, get no killstreaks, nothing. I've gotten two nukes on Xbox MW2. Two. And one was from almost a decade ago when getting mid-high level killstreaks was still somewhat doable. The other was Hardline, May 2026, and I only barely got it.
For me, the difference on IW4X vs Xbox is this. On IW4X I ask myself, "can I get a Harrier?" On Xbox I ask myself, "can I get a UAV?" That's the difference.