ALERT: I'm a perfectionist
http://puu.sh/hlN6z/1ad69f67a9.jpg make this lip non-solid
http://puu.sh/hlNpX/a969cf6e06.jpg make this diagonal thing non-solid or remove it
http://puu.sh/hlOqo/4c6d16fbfe.jpg Ditto
http://puu.sh/hlOEq/5d95a9dc3a.jpg Ditto
Make the skybox a bit higher, if I do a single vertical rocket jump from cliff i bump the ceiling.
http://puu.sh/hlNyo/c2ade710ee.jpg make the geometry simpler here, you shouldn't get stuck anywhere underneath the stairs/balcony. Remove/make the supporting things non-solid and put a clip brush so you don't get stuck on the lip.
http://puu.sh/hlNFO/2b542324f5.jpg Make this part of the roof non-solid so you don't get stuck on it during a vertical rocket jump
http://puu.sh/hlO5C/2820bc3749.jpg Ditto
http://puu.sh/hlOur/faa7c76597.jpg Ditto
http://puu.sh/hlOxW/bc63a2e52d.jpg Ditto
http://puu.sh/hlOxb/0e0d39f4c4.jpg Ditto
http://puu.sh/hlNKz/1ee29c4a77.jpg This happens on both sides and is a bug caused by the door frame not being drawn because of visleafs. Make the doorframe a brush instead and it shouldn't happen anymore. Making the doorframe a brush should also fix this bug: http://puu.sh/hlNP8/fa20245144.jpg
http://puu.sh/hlNSg/f083b2767d.jpg Make this lip non-solid so that you don't get stuck on it.
http://puu.sh/hlNU9/c2c877d9ee.jpg The geometry on this isn't optimal for rocket fights as there are quite a lot of splash bugs. Simplify the geometry here.
http://puu.sh/hlNXk/fa374a09d0.jpg Ditto
http://puu.sh/hlOeC/0bbd4828b1.jpg Ditto (maybe enclose the "storage" in chicken net. http://puu.sh/hlOk4/468146c5b7.jpg clip brush this window, http://puu.sh/hlOlO/38aa189118.jpg Remove the vent or make it non-solid or something. Make the fence non-solid and raise the floor or just cover it with a blockbullet brush. It would also be best to remove the electrical switch but it's not really important.
http://puu.sh/hlOzr/1dd4315a09.jpg Blockbullet brush on walls like this to avoid splash bugs
http://puu.sh/hlOBw/daf7f66353.jpg Clip brush the beams so you don't get stuck on them
http://puu.sh/hlOHk/c52c4a7bc1.jpg Make tiny blockbullet ramps on all places like this to avoid splash bugs
http://puu.sh/hlOUr/2223625f06.jpg Blockbullet this to avoid splash bugs
http://puu.sh/hlOW8/4069ebc2e6.jpg Ditto