I like the start of this remake, because the original rally is a really cool map (with lots of bugs) imo.
The sun angle doesn't really fit the sun/sky.
The group key is kind of useless if you add a type value, too
Only the barrels would all be the same each round.
(Same with team, teamnumber is the correct one)
You should delete "gamemode" "4" from your info_player_deathmatch entities to avoid problems with other gamemodes, e.g. elim.
Some pics...
Red: This is one general thing. Move down the texture to the ground in the whole map. Would look a lot more realistic and more clean.
Red: Argh...fix these lighting issues. They're destroying the whole look of the map.
Red: Same here. Btw. the right one doesn't seem to be a lighting issue, because paintballs disappear on this wall.
Red: Move this texture, the same on the other side.
Green: Add clip brushes here, the same on the other side.
Red: I'd rotate this texture.
Green: Add more clip brushes here.
Red: Rotate this texture.
Red: Rotate this texture.
Red: There's a hole.
Green: Wrong texture here? The metal texture looks out of place. I would use the stonewal texture there, too (like you did on the right side).
This looks different...
...than this one. Also it looks like the right wall is a little bit too small. It below the bridge a little bit, on the left side it isn't.
Red: One more hole.
Red: Rotate the textures.
Red: I'd rotate this texture, too.
Green: Add some more clip brushes here.
All in all a good beta with potential to be a nice and funny map. If you are not interested to put more effort in this beta, I'd be interested to improve it. Can't be possible that so many beta maps with potential never get finished.
Map is online @ [OTB] Beta!