Ok... so I'm using the most stable version that actually works with multiplayer [deng-inst-1.8.6.exe]
The only thing is... it doesn't have the option to modify the monsters' health or damage like in the newer versions that don't work in multiplayer or let me browse the server lists... trust me I've tested.
You will see something like this in the multiplayer menu screen:
Health Mod: 1
Damage Mod: 1
Is there a command I can use in the old version that allows me to modify the damage and health of the monsters?