I added a mediafire link in the first post.
About the scale: The problem is that I fit it into the blocksize grid, scaling it up by 1.5 will be a problem.
About models etc: I have no idea yet how to create models
About CTF: This map is not really made for CTF, except if you mirror it, which is lame.
About the map in general: Of course I will try to listen to all the experienced mappers here and improve it here and there, and I want to finish a version 1.0. But I have worked on it for so long that I want to come to a closure with it (I will release it under GPL, everyone is welcomed to improve it)
In a way, Treasure Island is my apprenticeship, but I have a lot of other ideas for a lot better maps, and I will use all the things I learned from building TI in order to avoid the mistakes i did.
I am currently planning my next map, same style, but bigger, with a bigger variety of locations, and with plants, workname: Sea Temple.
@ [-z-]: the screenshot you used with the uploaded map is not from the actual map and will probably lead to a disapointment for the downloader.
@ torus: player clip does not prevent the hook from grappling, but I will change the ceiling. Bigger beach is noted.
@ C.Brutail: Again, I am a noob, so assume I have no idea what you are talking about

. That said, what is phong shading? Or more importantly, how do I "phong shade" in Radiant?
@ [GF]HarryButt: I just realised what you meant with [-z-] screenies when I used the name above

, sorry about that
Thanks again for all the replies.