This is awesome, can't wait to play it! It's not the first mashup, though, you might want to correct that.

 

Hahaha sweet! ive been waiting for someone to make this. Will be giving it a download to play with some friends

 

I actually made a little mashup in Halo 4, that's the only one I know of. It didn't include that much stuff, though.
Well, I played it and I gotta say I probably got overhyped because of the thumbnail picture. I can write a full review if you want to.

 

Nicely done, this map was a lot of fun.

I did notice some things that could improve the map:

You can just skip the whale jumps by ground-pounding down past the water. I'd put in some invisible barriers to prevent this.

For the Grail Room, I'd play around with the objects to make the correct one more noticeable. How it is now, there's no way to make an "educated guess" it's just random trial and error and it becomes tedious unless you are lucky.

This one is kind of a vague overall feeling I had about the map but i'll try to explain it. Many parts of the map look great, but there are some parts that could be improved. Going back and forth from relatively bland rooms to highly detailed rooms creates an odd effect that make the less developed rooms seem incomplete.

I fully appreciate the struggles involving the object budget haha (I always max it out, and often max out all msg. and pwr. channels as well the scripts budget) but I think it would be worth the effort to go back over the map and look for objects to take out so you can add objects in other areas. The only thing that comes to mind at the moment is the "darts" trap, since you just jump over all of them (at least that's how i got past it) having so many of them is unnecessary. Taking a few out wouldn't hurt the look and feel of the trap and would allow you to add in some more scenery or cover up some holes.

Overall the map is good, you can easily identify the iconic traps from the movies and it is fun to play. But you put in a lot of time and effort already so why not strive for perfection haha.

 

Lost Pinecone said almost everything I wanted to say, so I'll just add some other points.
First off, the "Word of God". Why didn't you place down the actual name? The "true" letters were in random order and didn't say Jachwe or Iachwe. I needed ten minutes to figure out the random path. Enough said, I guess.
The whole map could be way smaller and therefore more detailed. You hurt the map's immersion and experience with some of the overscaled parts. If they looked good, it wouldn't be such a problem, but overally they don't. So my suggestion would be to scale the whole map down by a lot. That's how you can make the overall experience much more enjoyable, I think. Take the room with the ceiling coming down for example and make it smaller, etc..
If you do this, you would also have to change the gametype, of course, and disbable ground pound and thruster, which wouldn't hurt the gameplay actually. I think, the map would benefit from that change, too, since it would be more realistic. Cheers.

 

Cant wait to get home and play this!

 

I did a preview of your map here. Hopefully spreading the word of how awesome it is even further!