Daily update 

Today I worked on a spawner object as I had in creepy.
Let’s call it Goblin Tunnels.

After implementing I realised that often you could kill the Goblins and the Tunnel to quickly.

So I made the Goblins do their block move 100% on suffering dmg on top of the Tunnel.
It should also be understandable for the player as they are defending their tunnel more effective being close to it.

Note: They also do a block move away from the tunnel but less often.

So as a player you want to either move quickly above and shoot from behind at the blocking Goblin and the Tunnel or wait until the Goblin is out of tunnel range where the Goblins is less likely to block and easier to kill.