[quote=@Sven the Silent]
[@c3p-0h]
I tend to like realism during roleplay, the level of realism meaning what is realistic in that particulair universe. But not to worry, i'm not the GM so at most you won't see me during the roleplay if in my opinion things get to unrealistic.

[@Kingfisher]
The post war world has changed, travelling that many miles is simply near impossible. And extremely dangerous, hence it's unlikely a Synth will ever set foot in Western Canada unless it's a Synth in the Brotherhood ranks, whom is unaware of his existence, got send West to fight the NCR and then either deserted and went North or is simply part of a research patrol into Canada. (Assuming the Brotherhood won in the Commonwealth.)

[u]You are aware that Super Mutants constantly challenge eachother for dominance/control?[/u] You as a child, defeating a Super Mutant by obvious trickery and not strength, something they would despise and hence would hardly solify your control over the tribe. You'd most likely be challenged again and/or simply smashed into a puddle of blood and broken bones, ready to be stuffed into on of their meat bags. 


Again, i'm not the GM i'm just questioning things that I find very unrealistic.

[/quote]

If they operate in groups, and travel smart, they'd likely be okay. Perhaps not enough to justify an entire population of Synths, but given that there's an Englishman in Fallout 3 and a Irishwoman in Fallout 4, I'm sure you can suspend your disbelief in regards to characters traveling long distances. 

Super Mutants are riddled with psychosis, so there is no "set" super mutant behaviour, anymore than you'd expect every single inhabitant of a mental asylum to behave in the same way.
Also, King Coldfist was the only super mutant in the tribe. Its not a tribe of super mutants.