This always happens.. I play a map on here that looks a lot like Halo only to find that it's actually a remake of a Halo level lol. I was going to give points for creativity but I guess I can't..
I'm not sure that this map is ideal for Sauer gameplay. The bases are winding and almost random, the landscape is basic and boring, and the long rock in the middle is really quite pointless. I don't like that the insides of the buildings look identical everywhere. There's been no effort to texture the insides creatively or so that one part is well-defined from another.
As said the landscape is pretty basic. In many parts you've done little heightmapping so it looks fake. For example, look at those sniperholes in the rock you get to through the large ramp. It's almost a perfect box in there, even though the rock isn't supposed to be so perfect.
The lighting is also really basic. You might tone down the main sunlight in terms of color so it isn't so 'harsh'. I guess since it's a daytime map you can't go in-depth with the lighting unless you put up lamp posts (but then, why would they be on during the day?). Still you could do more work there.
I realize this is a remake map, but I'll say what I always say about remake maps: They don't need to be verbatim copies of the original. You can throw in your own ideas and create it perhaps entirely differently. You could remove useless or ugly things and put in better parts.
So.. This is a decent remake, but I still have to give it 2/5. It could have a lot more work and love put into it.