kilted heathen

If you fail SFAS you become "needs of the army" and are subject to worldwide assignment.

OCS is non-branch specific,this means you cannot be guaranteed to branch Infantry.
You will submit a wish list of branches of choice but be advised that Infantry Branch is highly competetive and the Army will make you an officer but will branch you according to its' needs.

If you fail SFAS expect to wait a couple of years before you can put in a packet for OCS.