0c10

Size:32
Command:16 Channel:8 Garbage:8
DestLID:16 Garbage:16
Garbage:32
Garbage:32
Garbage:32
Garbage:32
DestTypeID:32
DestGID:32
0:32
0:32
1:8 Garbage:8 OptionsSize:16
Options:(OptionsSize * 8)

Size: variable
Channel: 3
DestTypeID: 00011300
OptionsSize: size of the list of per-mission options following this value
Options: a list of bytes with 1 byte per option

An option can be one of at least three values: 0 hidden; 2 visible but grayed; 3 visible and selectable.

A counter defines categories and missions inside them. 
The list of options start with categories and then continue with missions directly.