Quoted from J85M:Go away!
And here was me feeling great about half a billion last night! Mind sharing your scoring tips, curious what you guys with these crazy scores are doing.
In short - playfield multipliers. My scores have started going up a lot higher now that I'm focused on having 1 or 2 activate as often as possible.
More detailed tips:
I always look to stack a mission and a multiball together and bring in flame thrower (for 2X shots - since the mission and multiballs share shots, you're doubling points in those shots for both features). I also like to bring in amban rifle to extend multiball to try and maximise my opporunity with the super jackpot. You can always save your flamethrower for the super jackpot also, but I often don't.
I always want to have flame thrower and ambar rifle through for the mission / multiball stack.
My scores have started getting even higher now that I'm bringing in 2x and 3x playfield multipliers (I'd love to bring in all 3, but it's rare that I achieve that) - add that to the 2X shots (flame thrower) with a mission and multiball stacked for even bigger points. So I like to get a mission and a multiball ready - then I look to get scope (for the beskar and playfield multipler). Normally I'll have the playfield multiplier active for the Boba targets too. Then start the mission followed by multiball, followed by flame thrower - and you're away 
Also before starting Razor Crest hurry up, I like to have 2X or 3X going on the playfield multiplier too, which can really help boost the value for each of the 3 shots. Especailly on the second hurry up. Just make sure you get those 3 shots in quick!
Another thing too is you don't need to hit the final shot of the mission straight away. You can to get a time bonus. But some missions will still have a lit shot with the timer active, so hitting them can milk more points before hitting the final shot to complete (again add in active playfield multipliers, and grab those points!).
Also don't forget combo shots in missions - this was a nice addition by Dwight in the last update.
There are times too where I don't even bother playing for total points and instead of stacking modes, simply play each mission and multiball on its own - looking to see how I can best score in them. Especially when you use the flame thrower when stacking - you want to make sure you hit shots that are lit for both multiball and mission. So for example, based on the active mission with the multiball, you'll want to hit shots in a certain order to ensure you're getting 2X for both the mission shot and multiball shot. So learning the missions is important.
When going for points, I don't seem to bother with encounteres. The bonus levels can be rewarding wise, but I'm not finding enough points there. I'd still like to explore them more though. Ambush - I never seem to advance towards it (even on those billion point games). I also haven't been using other features of the foundry much. I tend to just buy the flame thrower + rifle combo. I think it would be great if you weren't locked in to only buying 1 item or 2 items side by side - and instead could just select any combination of items up to the value of beskar you have. I'm keen to play around a bit with buying other items and seeing how I can best use them.