The USMC uses a board to select applicants. It is highly selective.

Then they go to ten or twelve weeks of OCS, where 50% pass.

There is no emphasis on training, just selection.

Then they go to The Basic Course for six months of training in the basics, followed by an MOS course (Infantry, Artillery, etc).

It's a good system. I like working with Marines. Very professional and well educated. A far cry from the Army system.

60% of Marines come from OCS. 30% come from USNA, where there is less selection. The two groups don't always get along at first...