Doesn't move from point to point

The mission at your beginning of the game, where you need to find a scarecrow with the help of an antenna. there are 5 armed men in the little room, and you have 3 ledges from the top. In general, after you manage to lure 2 people out of the room, you need to move to another ledge and deal with those two. But he does not want to move to another ledge, what should I do? Help out, folks.