is this illegal

hi folks.....a guy im playing in our 2nd leg of cl has decided he would like to set up in a very peculiar way,and i was wondering if he's gone mad or doesn't want to conceed yet more goals...he has gone with a





MC MC MC


DML DMC DMR

DL DC DC DC
GK
IS THIS LEGAL.....thanks

I am fairly sure you need to have a striker, so yeah it's no good

thank you...i'll play as normal then