Hey,
it seems pretty cool but what if the biters came near to your base and the berta shoots?
It will break your own base or not?
I have the same problem with my mod that the turrets destroy themselves when the biters came to near.
Just a Question, keep up the good work dude!

Edit: I'd love to have ...

Here you go, ty for help

Hey Dudes,

i've created a Mod with a custom explosion, however the game crashes exacly before the rocket reaches it destinanion.

Error Log:
0.002 2016-03-24 23:54:42; Factorio 0.12.29 (Build 17931, win64, steam)
0.002 Operating system: Windows 8.1
0.002 Program arguments: "C:\Program Files ...