How it is going
Was forced to add some weak weapons to creep-extracting bots, because factorio enemy AI engine hangs sometimes if bot/biter can't damage tree/rock (no need to destroy, but some damage is a must). Script will never ever get back the control of the unit despite timeouts set in game engine and in the script. One phys damage should be ok - peaceful enough. Now they attack trees according to Wube's design, but after timeout stop disturbing the nature and find a correct path. :-)
Set balance for creep gathering speed and pollution. Optimized UPS in some points, but even in worst case there is a way to considerably improve it.
Found a graphics issue in Robotarmy - reported in the mod discussion. By the way it's a nice mod, a little OP, but after balance regress in factorio2.0 it looks good.
Designed fuel consumption for early game creep extractors. Will be UPS safe.