The IDF has the F-15I which has a centerline hard point rated for 5,000lb load. That's immense for a fighter but a magnitude too low for the MOP.
There are a variety of smaller US penetrating bombs that the F-15 can handle, but they don't have the mass and structure to penetrate as deeply.
Also the B2 is better suited for extreme endurance missions like this where the plane is in flight for >36 hours. It has a toilet, microwave and a cot for the pilots to use during the more mundane parts of the mission.
https://www.reddit.com/r/CombatFootage/comments/1lb8mkc/iran...
You can threaten a C-130 with visually guided WWII era flak.
You are unlikely to get an F-35 with it.
Also, each B2 can carry 2 MOPs making it a better platform than a C-130, and that isn't even taking the stealth of the platform into account
Wow. That is amazing. 60,000 lbs. combined.