A little trivia, 1.2 was the biggest update to date, it added 16 parts, and one island, that of course being the one named like a sound effect. We need something that's much larger than the more recent updates (1.5, 1.6).

Parts:
1. Guided bomb- locks on like a missile, and guides itself to the target, simple
2. Fuselage hole- Basically a fuselage intake, but the hole size is scaled like a normal fuselage block, and the hole is straight through the entire part
3. Larger, customizable landing gear- Customize the ride height, the retract path, and it's retract speed
4. Helicopter parts (You get the gist of it)
6. Flaps and slats inbuilt to wing parts
7. Arrestor hooks & Arrestor wires- Install wires on both carriers, and have a part to snag the wire and stop for easier carrier use.

Challenges:
Fix the crosswind landing challenge because it's probably at 50-60mph winds, and the fastest probably would be 25-30mph to even be flying.
Transfer Flight: Fly from one airport to another between islands or in the vicinity of the island
Hit The Target: Hit a ground target directly with a bomb, has to take off, then land to finish
Without a Bridge: Fly over hostile territory and try not to be shot down, make it from one side to the other
Reconnaissance: Fly below 500ft (Above ground level), and fly above a 'top secret' ground location for ten seconds, and return to base

Features/Tools:
Nautical/Metric measuring scales: Simple, converts Mph to Knt or Kph, the same with miles, Km, and Nm
Painter tool (Re-do): Have the color slider be replaced with a color wheel and text bars to put in HEX or RGB codes, and sliders or text boxes to control how shiny or dull you want the color to be.
Body Lift: Flatter surfaces of fuselage blocks generate lift, but only a little bit compared to wings.

World features&Add-ons:
Have a mountain base at this location:


I also have drawn out plans for it as well:

You can see I am the best at using MS paint

Dalton Archipelago: Multiple small islands very close to each other, some connected by bridges, 2 airports, and some sweet scenery
Worlidge Island: Littered with small airfields, and a single large airport. Lots of plains, and mountains near the unpopulated areas. Would make for a nice place to have fun in multiplayer
Also a full airport at the northern runway, or at least a tower, an apron and hangars

Cosmetics:
Ability to change color hue, font, and saturation of parts of the menu
Ability to change FOV in-flight
Zoom feature on camera parts

That's all I have now, good night.. or morning

              ~~Bacon