What i would really like but this will never ever forever happen is this.
1. Buoyancy and sinking in the water so when my ARD has a splashdown it can sink.
This doesn't seem impossible, unless you mean proper water particle simulation. Even then it is possible, just not at Earth scale.
2. Proper Collision Detection so instead of floating past the airlock you can actually go into it without floating off into oblivion.
This seems to be one that I'm sure we all want, but now one AFAIK has spent the time to make a proper one.
3. The ability to not be able to land on gas giants like jupiter and stuff instead you float right through them if not die.
Gas giants aren't made of nothing but gas. :facepalm:There is landmass to land on. :facepalm:
4. Boats so they can be on the buoyancy and maybe battle ships to sink other ships no?
Sounds fun, but doesn't really have a place in a space flight simulator.
5. A good multiplayers
Being made, just not quite stable and a pain to set up.
6. The ability to land somewhere or crash and have the ummu hold a gun and have all kinds of animals in the wilderness to shoot at if they try to attack you.
(To copy above) 0.o
7. Plants... Such as trees forests jungles and islands.
LLLLLLAAAAAAAAAAAAAAAGGGGGGGGGGGGG
8. When you sink to the bottom on buoyancy you can see the bottom of the ocean.
LLLLAAAAAAGGGG (Not as much as 7.)
9. Able to make floaties on your capsule or whatever to inflate when you start sinking
Sounds good for AMSO and other capsule add-ons.
10. On the buoyancy make it to where if you float depends on weight.
Weight actually doesn't have a big part in anything floating, ships weigh tons but float because of the large amounts of air within.
11. If you land on the ground in a capsule and not in the water you leave a crater or something?
Possible somebody could make an add-on that, when you hit the ground to fast creates a crater mesh where you crashed.
12. Make the ability to have small meteors hit earth or in space to make craters or to accidently hit and then has a failure
Realistic, but may be difficult to implement and could get annoying.
13. in buoyancy make ummus drown if they are under water too long then make em say dead.
This would be something to add to UMMU not Orbiter itself.
14. the abilitys to walk around a ship with a full VC interior and walk inside of it with a ummu with collisions detection so you can walk all over the ship to cafeteria or sleeping place
There have been concepts of this made with stations.
15. the ability to enable disable modules.
What do you mean? If you mean add-ons I'd recommend Generic Mod Enabler.
16. the ability to stop making suggestions
Then I wouldn't be able to use red text to reply to your suggestions.
I need a santa clause to make this happen lolz...
But yeah i wish orbiter could have those but it cant.