Forgive me if Im wrong here... but as a casual war observer over the years I'd imagine most conflicts would start with a savage blitz to obtain Air Dominance which would focus on knocking out runways, AA sites, radars and enemy fighters. All that would need to be done with F-35's in the highest LO setting possible and internal stores only being used.
At this stage you would expect tanks to be bypassed and overlooked untill Air Dominance was secure and then you can fully convert the F-35 into a bomb truck and rip through ground armour utilizing the additional wing pilons as LO no longer becomes a big concern.
If I'm picturing this right in my head you shouldn't really need to worry about using internal store space for heavy armour targets correct? Maybe I'm simplifying things too much.
One of the initial actions which would occur or attempt to occur in a conflict between nations would indeed be for one side to gain control of the air. Assuming the capabilities of both sides were not fairly equal, then the more powerful/capable side would engage in an IADS rollback.
Even if the sides were fairly balanced, both would attempt to delaminate the other's C3/C4ISR/IADS to gain advantage.
Initial targets for delamination would radar/sensor stations to 'blind' the enemy, command centres to render them 'dumb', and comms centres/links to make the enemy deaf & mute. In effect taking the I out of an IADS. AAA and SAM sites would be targets as well, especially if they were in a position to defend any of the other targets. Airfields would also be early targets, to limit or eliminate the opponent's ability to conduct counter air operations.
The level of sophistication of the opponent (and specifically their relevant systems) would dictate how the rollback would be done. If much of the enemy's GBAD consisted fo MANPADS and/or small calibre (12.7 mm or 14.5 mm) guns, then little usage of LO features might be required since flying at ~25,000 ft would avoid it. Firing a few (or perhaps even many) LO standoff muntions like JASSM or JSOW at airfields with aircraft on the ground would likely keep the opposing air force out of the air. Once that is accomplished, the command and communications facilities would be targeted to break any cohesion, and then assets on the ground could be targeted with virtual impunity.
What I find potentially interesting about CUDA is that dual usage against aerial targets like enemy aircraft, and also against softer ground targets like SAM or AAA vehicles. While a single HTK missile would not be sufficient to destroy something like an S-300PMU-2 unit, but would likely be enough to destroy a 83M6E2 command post and thereby neutralizing the rest of the unit.
-Cheers