I just played it with Berria
It's a copy of Aerial, but with Hysteria weapons
You should just play Aerial instead. The flamethrower is rather useless when you pretty much always use your jetpack and the granny isn't as good as a sheep.
The crates are also missing. They make the game a little more dynamic. Without them it tends to boil down to a BnG-sort of fight between one side of the map and the other. The crates make people leave their hides and they give some benefit to the player hiding on top (and dominating the field).
If you want to have a more hysteria-kind of game you should stick to 1 sec, or 2 sec at most. 3 sec makes Aerial and if you want a scheme like that you should go with the Aerial scheme and expand or detract weapons and options from there rather than sticking to weapons that might be useful in 1 sec schemes, but that are rather pointless in a 3 sec one.
I also don't really see the point in having 2 worms more per team. It tends to boil down to 1vs1 anyway. I think it makes the game more boring than making things more fair.