Fix/Increase Blight towers deactivation range

Just failed a blighted map in SSF (so my character is not very strong to do blighted map without towers).

Map had 3 main direction where the mobs were coming from. The tower clusters spawned so far away from each that only 1 could be active at given time (the one I stick close to). Mobs just walk through other 2 deactivated areas and eventually I fail it. Just because I had towers inactive if I move further away from them.

Another solution could be forcibly program towers to spawn close to Pump.

This was the map, and I marked in red where closest tower cluster spawned:
https://ibb.co/wsfXQbb

There were 3 loose towers around the pump, and then 95% of towers in the 3 marked areas.

If I move close to one these location, other 1 or 2 gets deactivated. If I stay at Casia location - all 3 got deactivated and it was a matter of time until I got overwhelmed.