Quote Originally Posted by IliaDN
I remember eliminating the whole faction ( Spanish ) in the MTW using only those guys , but when I tried it RTW I failed and was rather disappointed , so have anyone else tried this , and what is your opinion on those guys in RTW , are they of any use to you?
Assassins are very useful.

The AI uses them and defends against them too. Overall the AI does a pretty good job of it, better than the previous TW versions.

Given that, the AI doesn't engage in the Chessy tactic you describe.