So basically what I'm talking about here are my Enslaver Aliens. This brings this back to my previous post. Such Aliens, when they appear, have an area wide effect. Whilst their main ability is to dominate human minds and people are haven't done regular training they also have the powers of telepathy, teleportstion and telekinesis. Said mind control turns people into something similar tk a zombie.
As long as they're alive, everything from a kilometre to a hundred kilometres radius drops in temperature to -120 to -140 Degrees Celcius. So it's very cold. Such battles can last, against the Enslaver between half a day to up to seven weeks.
A Newborn Enslaver is an alien the size of a large dog that can only cause the temperature, within a kilometre of its to drop to -120 Celsisus. It usually takes half a day to kill and can only control a thousand or so people, without proper mental conditioning at a time. It can also only do some short range teleportation once an hour.
On the other hand a full mentally matured and elderly Enslaver is something ths size of a four storey building. It's mere presence drops the temperatures of everything within 100 kilometres of it to -150 celsius. It takes about 50-500 days of fighting to kill with modern tech and can enslave up to 100,000 unprepared people at a single time. It can also teleporting, in the short range every 36 seconds.
Given this how would you show such battle conditions?