4.

They should not, prior to the attack, look at the Americans in a threatening manner.

To the contrary, the attack on the barracks by the sandatahan should be a complete surprise and with decision and courage.

One should go alone in advance in order to kill the sentinel.

In order to deceive the sentinel one of them should dress as a woman and must take great care that the sentinel is not able to discharge his piece, thus calling the attention of those in the barracks.