Bushido there were slim to no complaints before you touched the server. After your update is when everyone started complaining, stop being biased because you put a lot of effort into this.
Fall damage should remain off. The map is WAY too small for it to be on. I spawn, 10 seconds later, I get blasted and die from someone rocketing me up into the air and splat onto the ground. I have no defence and is completely unfair and boring.
Or if I get a rocket launcher, and I want to escape immediately because there are around 4-5 people next to you when you spawn, (Cuz the map is tiny as forget) I fall and die because it was too high of a jump.
I think falling damage would be fine to have (lenient), if the map could support more people. A suggestion is expanding the current map. It is WAY too small to handle 16 or more people. Average lifetime is 15 seconds. It's so annoying and caused frustration because people are a little bit more skilled than I am, giving me no chance. I (and other dumb people like me) would like a small chance if any. The beginning of the rounds consist of everyone trying to run and hide from getting destroyed by anyone with explosives or OP weapons, and wait for action to die down. Spawned right in the middle of the map with grapple hook, accordion zapper thing, and a blue key? Sorry, stuff out of luck, just wait till you die by someone thats around you, there's no escape anyway.
My suggestion: Expand map, or lower the player count to around 15 or so.