very little in the way of guilds that would suit an assassin character.
I agree on this, most assassin rpers goes down the path of sellswords and mercenaries much more openly then an assassin would.
Altho there is the usual missuderstanding that an assassin is a ninja, they infact have some things incommon but they are NOT the same thing.
Otherwise yes, it is difficult to make them fit into Warcraft lore and universe and all lore-related assassins are gladiators or quite open about their assassination job and I think that is also another factor to why rpers playing assassins are open about claiming themselves to be one.
I will once again say though, that I personaly on my own rogue plays one and I deem myself to be decent at it as for being subtle and sneaking around in various diffrent clothing and using a diffrent flag/mrp profile to avoid metagaming, even though it still happens.
If you plan to play an assassin, do as followed:
Be mindful that people you try to kill might not want their characters dead and this can create troubles ahead of you, contact the person oocly first and arrange something to suit both of you.
Inspired doesnt mean based on. That is where the diffrence is. Inspiried by motives and some (far from all) movements and belives. Using the AC series belief and adapting it to WoW doesnt mean I sole base my character on the series, I lend ideas, adapt and recreate. Nothing more. I also saw my flaw in my first post and fixed it, I expressed myself wrong and if it was missleading I appoligies.