I don't say u should Ottomans from the start of the mod. I'm just clearing out that they were part of Rum Seljuks and declared independent because the central power where weak and unable to maintain it control over all of it's specially that the sultans since Kaykhisro II where under the Ilkhanate control and the Brawnah of the Ilkhanate held the true power not the Sultans however all of this can't be simulated in any TW game specially that the mod starts b4 the mongol attacks all together unless the start date is changed but there is no need to complicate things too much