2Pegasus:
First, about the pedestrians: In old version (MTMU-Nightwol-RC7) there ARE damage-causeing volumes on the roofs, but they don't work

So, it's hard to say if they are poorly made or they are disabled for some reason. As for me, the roof travel system would be nice, but my skill is not so good to make it good from start. And, anyway, the map changed significantly as is, so maybe it will be an addition to v2. So, I limited it to 1 roof near each base, which can be used tactically and surely won't provoke half-map spam (they only cover 2 or 3 nodes each). I'll probably open more roofs in v2, if I get to it, but I'd like to test this edit first as a start.
Also, my passage on methods of killing innocent pedestrians is mostly a hint to alternative ways to force players to keep out of some area, instead of plain "5 damage per sec". IF need arise (e.g. if we see many many players sitting at roofs, which I doubt), they can be used, but I'm not planning to use them right now.
Second, about roof campers: my point is - if there is a way to inflict damage (even small damage) without getting hurt is very appealing to many (mostly noobish) players, they'll use it often. If there are easy ways to get to high roofs and little or no counters to that, you'll always have 1 or 2 guys in each team trying to camp there and spam. It's ok with 30 players on map, but it's often played with 15, where each player is important. So, simultaneously with creating roof transit, you have to add counter to it.
Third, take a look at current edit of map pls

There are no Lolbreakers left, the vehicles are all new
Fourth, and least (tl;dr): yes, I (probably) am going to change the map further, but I want to test this edit first. No, I don't have something vs roof walkers, but I do not ike roof campers and want to add ways to counter it if more ways to get to roofs are added.