how to create climbable objects Thread - FarCry Operation Clearing mod for Far Cry

the entity called "ladder" can have a own cgf. so two variants:
-place a ladder instead of the object and choose the object cgf
-place the object, place a ladder and choose a object (the same, a box) which covers the part of object which you like to be climbable, place it over the object,
go to material editor, material-->level--> get material of selectd object, replace the shader with "nodraw" to make the ladder invisible.

be sure to deactivate the "draw and recive shadow" in ladder entity properties.

btw: with first variant, if the object have massive different size than the ladder, it might be possible that the geometry is not correct recognized, so save / reload can help.
if you still have problems, for example if you have choosen a big container, you may use variant 2, with 2 invisible ladder boxes on container position.