So about Musketeer whose symbol still is in Marauders what happened too it?

[Whatzituyah]

They can't, because both: the Marauder guild and the Musketeer guild share the same building (check its basement).
It'd be weird/out of place if they removed its sign.

I did check the basement but it in itself is also outta place too. Why you think I stopped playing to ask this question?

Just to point it out the Rogues Guild placement makes the least sense on the map.