I haven't had the chance to play most of the maps, but I've played Traumatica a good few times now.
While the map looks well forged, it doesn't play very well. You spawn in Heretic style pretty much in view of the other team immediately. The map feels small for 4v4 anything, and I found myself spawning and almost immediately being shot quite often. The sight lines, barring the spawning issue mentioned, are pretty good for the most part (though, I'm no expert on sight lines for a map I've only played half a dozen times). There is one spot, a small corridor on the side of the map, that is so dangerous to be in it's pointless to use. The corridor is walled with the metal fencing, but since you can shoot through it anyway, anyone walking down the stretch is usually dead if they're spotted. Maybe this is intentional, since it is a straight shot to the enemy's base, but the map is small enough to where that advantage is diminished.
While the map looks well forged, it doesn't play very well. You spawn in Heretic style pretty much in view of the other team immediately. The map feels small for 4v4 anything, and I found myself spawning and almost immediately being shot quite often. The sight lines, barring the spawning issue mentioned, are pretty good for the most part (though, I'm no expert on sight lines for a map I've only played half a dozen times). There is one spot, a small corridor on the side of the map, that is so dangerous to be in it's pointless to use. The corridor is walled with the metal fencing, but since you can shoot through it anyway, anyone walking down the stretch is usually dead if they're spotted. Maybe this is intentional, since it is a straight shot to the enemy's base, but the map is small enough to where that advantage is diminished.