Cashie
King
Foreign Legion 22 (-2)
Chu-Ko-Nu 8 (+1)
Samurai 24
Janissary 32
Chu-Ko-Nu 8 (+1)
Samurai 24
Janissary 32
Well, it isn't a 100% bonus: they have less ranged strength than a regular crossbowmen. Plus, if they move, they can't attack twice, thus being worse than a regular crossbowmen. And it doesn't affect defense, which the Foreign Legion bonus does.
That doesn't mean that it is a worse/better unit than the FL; just a matter of playstyle.