Holy shit that might work. They do have a 40% suicide rate. Put them on the front line and let them commit suicide in front of the enemy.
King Goujian's army was known for scaring its enemies before battle because its front line consisted of criminals sentenced to death who committed suicide by decapitating themselves.[2] However, in the passage, "越王句踐使死士挑戰，三行，至吳陳，呼而自剄。" the literal translation of "死士" means, "soldiers willing to die," not, "criminals sentenced to death". "自剄" means to "commit suicide by cutting one's throat," which was a common way to end one's own life in Ancient China.[3]
https:// en.wikipedia.org/wiki/Goujian