I could find a better place to put and now i leave this for the admins of these forums to spread this help to other but do warn them not to delete the files as once this is fixed they should re-enter the files to their folder as these could be essential to playing the tanoa map.

So take your mac and go to finder. Navigate your way to library then open application support. Find the steam folder and go to steam apps and from there to common. Find the arma 3 folder and open it. Scroll down to Expansion and open it then open addons. Now find all files in the folder that contain the word vegetation as this is the problem file. Now move all these files to your desktop and leave them there. Go back to steam and play arma 3. You may open it and load in or it may say Bad version 72 in tanoabuka p3d file. Do the same steps to get to the expansions folder and addons folder as described before. But this time move all files containing the word tanoabuka to the desktop. Now your arma 3 should run fine. This worked for me and let me know if it works for you.

So for those of you with my same problem you may get his error message: Bad Version 72 in p3d file: a3\vegetation_f_exp\clutter\grass\c_grassbunch_hi.p3d.
Well instead of having to re download content to switch to legacy branch try this.

I have figured out a better way to fix my problem and i believe it could help others

Wait, i just fixed it i switched to legacy port and it loaded up.

um i already filed it so where would i find it?

Where can i see if it was fixed?

ok i did

But even when i wasn't on a beta it worked before i downloaded apex

im not opted into any betas if that helps

Tried your solution didn't work