Thank you 343! That is all I was asking for! 
Info from this bulletin.
> Will there be hill/more rock pieces included in Forge Island? What about tree pieces?
> –M0aHerder
> We don’t provide hills but we did include new rock pieces. These new rocks and trees are available in the “Natural” palette but we also included 2 extra-large rock objects in the “Buildings” palette so you can make a much more natural map.
> –Kynan
> Actually Kynan, some of the larger rocks are so big that I’ve used them as hills and ramps –made some really sweet Warthog jumps, too. Heck, I built a whole level made solely from rocks. So many rocks! Trees, too. I made a giant forest! It was so… necky.
> –Vic
Hey, they answered my question!
I’me excited to hear about the large rock pieces, possibly even more so than the trees. Hopefully they’re big enough to allow us to create cliffs and such, either way it will be easier to create natural borders now. The trees will be very useful as well.
Forgable trees in Halo. I think i’ll be able to finally take my Predator gametype to a whole new level >:)
Holla! My excitement is so excited!
Amen brothers and sisters! Trees!
And they confirmed we can forge down to the water’s surface. I’m looking forward to some maps that, instead of floating in the air, are right on the surface of the water so you can fall off the map into it.
> And they confirmed we can forge down to the water’s surface. I’m looking forward to some maps that, instead of floating in the air, are right on the surface of the water so you can fall off the map into it.
Not just down to the water, but so long as a spartan’s waist stays above the water line they will live.
Im expecting some good things to come out of Forge island.
YAY!! : D even more excited for it now!!
> > And they confirmed we can forge down to the water’s surface. I’m looking forward to some maps that, instead of floating in the air, are right on the surface of the water so you can fall off the map into it.
>
> Not just down to the water, but so long as a spartan’s waist stays above the water line they will live.
>
> Im expecting some good things to come out of Forge island.
Reminds me of some awesome custom gametypes from the Halo 3 days that took place in the water on High Ground. Jaws/Shark anyone?
Holy crap, really? This is true???
WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!
Forging by water? Rocks and extra large rocks?? TREES?? yes… Yes… YESS!! 
I. Am. Excited.
I just want to let you all know, I’ve been trusting 343i, and I have not ONCE bashed them. I feel bad for anyone bashing 343 right now, saying they don’t listen to the community… HA!
I always knew it man. I always knew it.
Good Job 343, Very Good Job!
Hopefully on Halo 5, we’ll see them bring in a new terrain editor so we can make terrains, then forge them later! 
I wonder if I will be able to place trees in the water…
I may forge for once now. (But just physics testing/ playing around)
We can haz treez!
The 11th cant get here fast enough.
> I wonder if I will be able to place trees in the water…
Can you say… swamp/marsh map?
AWSOME!!! I’ve ebnw anting trees sens ehalo reach.
WTF. We’re getting freakin’ trees.
…And 343 said, there shall be trees and rocks on Forge Island
jk, but im pretty excited for it.
> > I wonder if I will be able to place trees in the water…
>
> Can you say… swamp/marsh map?
I can see those Vietnam/tunnel maps from Halo 3 coming back.
And people say 343 doesn’t care.