Increasing the durability of the heavy might not change that much as even with 400 hp the heavy can die pretty easily if he is out of position,apart from needing a extra bit of balancing for the heavy to be tanky and not be able to kill people easily would be needed but with the vanila state of the minigun atleast it would still not change much by how effective the heavy would be in most cases.

Im not sure if falling speed can be change other than how gravity affects the user,although i could be wrong so you better ask in the discord.

check the stats yourself,i think it might have changed with the whole stock weapon rebalance patch.

Actualy i think the walkabout has the no scope sniper rifle motif

One way to balance a weapon is to think how far you stray from how stock plays out and how much you think people can deviate from their playstyle.Sniper rifles that cant quickscope are not really popular and even the sydney sleeper was able to mini crit headshots when in the past it couldnt.

I dont see anyone using the prototype S-8,most people dont like when they cant quickscope people and if the sniper ever has line of sight with a building then a soldier firing 4 rockets can take it out even with a engie repairing it

that manncannon would be completely op,being able to basicaly deal 150 damage on body shots and 450 on headshots every time you get a kill plus explosive damage would make it freaking scary.

Also you can also use the discord to discuss weapon balance,its better as people tend to comment faster in there than the steam group,if you want.

Will the mark on death be on mutliple targets?Because a flamethrower that marks for the death so many people can let a heavy or a solly wreak a hole team

Unfortunately you cant force people to be kind so unless there are other moderators looking out for this exploit there isnt much that can be done about it without fixing it completely.

Everytime this map comes up people slowly start to leave the server,i think we should not include this map to avoid sudden player drops