Patrol heli ignores sleepers, but CH47 does not

Hello,

in my configuration sleepers are protected and it works very well. The patrol heli also completly ignores them. But while CH47 when delivering locked crates can not kill them, it tries to and shoots at them. Any suggestions to tell CH47 to ignore sleepers like the patrol heli does?

Greetings,
Toli

hi, I've noted this down