Nameless Fog Guardian

An unexplained Strider that wanders Construct when a fog settles in.

Background
I don't know what it is exactly or what it's purpose is. I have been able to hear it and it has lead me to believe it is a Strider. Though, this one is undetectable by radar and the only time I got any results is by going myself and checking it. It is indeed stealth like, not being able to be seen from afar, but up close. It only appears during a fog for whatever reason. Then it wanders aimlessly, it's steps being heard throughout Construct. If it senses anyone, it will attack relentlessly.

Strengths and Weaknesses
It is indeed a powerful foe. It has upgraded Strider technology, being able to shoot a cannon that can disintegrate anyone and anything. It's blaster has increased range, timing and speed that is paramount. Combined with it's stealth, the only time when you can pinpoint where it is, is by it's blaster tracers and only see it when you are really close to it.

Though, there is a drawback. This is one of the times being old is it's downfall. It has been made out of material that I have yet to catalogue, but it is way outdated by modern standards. If you do get close to it and use weapons with piercing rounds, you can most positively take it down. Though, the problem is that it will retreat when damaged to a critical state.