What army would you bring to a tournament with *no* terrain?

I'm temporarily bored of complaining about ctan so join me in this slightly silly hypothetical theorycrafting exercise.

For some reason you're being forced to go to a tournament (you lost a bet, there's a million dollar prize, you're playing in the slightly more sadistic british version of squid games...) and a month before you learn that every single table is going to have exactly 5 objective markers and some badly applied flock.

What army do you beg/borrow/buy to maximize your chances of victory?

My currebt theory is start with 6 rogal dorns and go from there, they have the best combination of (long range) damage and innate survivability, but maybe imperial knights with the appropriate shooting configuration can out do that?

Or perhaps there's some tricky armies that might be able to "beat the meta", belakor providing a lone op aura combined with 6 inch deepstrikes for his boys might get you some upset victories, or perhaps lean into deepstriking with gsc, combine half your army starting in deepstrike with some redeploys to null deploy and avoid being punished for losing the first turn roll off?