What do I tell a recruiter who does this?

your recruiters full of **** they should tell you the jobs your eligable based on your asvab i know its not just mp or sf if you scored low you wont have many openings that includes speacial forces you could though join as infantry and volenteer for sf and yes he has to work with you if mp is what you really want its his job dont let him bullshit you tell him what you want if you think hes bullshiting you talk to another recruiter