They're based on stealthy weapon pods being developed for a stealthy variant of the F/A-18 Super Hornet
But yeah, fighters in Ace Combat keep hundreds of missiles in hammerspace, so why not just use the F-22's internal weapons bay that they lovingly animated in Assault Horizon/Infinity
I'm not really familiar with the stealthy variant of the F/A-18 Super Hornet, but managed to find this:
Man, the F/A-18 Hornet in general has to be one of the most evolved fighter platforms ever. It all began with Northrops YF-17 Cobra, the plane that competed with General Dynamics YF-16 for the Lightweight Fighter program in the 1970s. A plane the USAF wanted to supplement the high-end F-15 with. The YF-16 won, and became the F-16 Fighting Falcon.
YF-16
YF-17 Cobra
The YF-17 Cobra was evolved for the Naval Fighter Attack Experimental / VFAX, which became the F-18 / F/A-18 Hornet in the mid 1980s.
In a nutshell, the loser of the Air Force's Lightweight Fighter program, the YF-17 Cobra, became the Navy's new F/A=18 Hormet to supplement the F-14, and replace several older planes. The Navy sure had a potent mix of F-14 Tomcats, A-6 Intruders and F/A-18 Hornets, forming the core of our carrier air wings for the carrier battle groups.
The Hornet evolved from the F/A-18A to the F/A-18C (which the Blue Angels still use), then to the F/A-18D for the U.S. Marines with night capabilities. Then from a set of specifications called "Hornet 2000", the F/A-18 E/F Super Hornet came about. And also the EA-18G Growler. I'm sure I'm missing some.
I haven't kept up with Hornet developments since. That stealthy Hornet looks great. I'm sure it would be a far better alternative to the joke that is the F-35.
Opps, going too far off-topic lol.