Testing happily. Still don't understand it all. As for now I shortened it to this:
Set_new_depth,30,0,0,0,0,0,50
All_stop,0,0,0,0,0,0,5
Hydrophone_normal_sweep,0,0,0,0,0,0,20
Report_nearest_sound_contact,0,0,0,0,0,0,20
Surface,0,0,0,0,0,0,50
Ahead_standard,0,0,0,0,0,0,1
Loop,12,0,0,0,0,0,0
Set_Time_Compression,1,0,0,0,0,0,5
EDIT: And it simply doesn't work at all.

I must have messed it up too much.