Ok this tutorial is how to make modded classes

step 1) download udp unicorn
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on your computer
step 2) Setting up UDP Unicorn to lag Xbox live.
match these settings
Target:27.27.27.27
Port:Xbox Live
Packet Size:20 (turn down if it shuts off your xbox live)\
step 3) get on black ops 2 and go to custom games > edit gamemode > Preset classes > MAKE SURE YOU HAVE IT ON GLOBAL CLASSES NOT TEAM CLASSES > then click the top class and edit to have ONE sight, and an empty attachments slot.
Step 4) SAVE the gamemode on your profile
step 5) go to your save games and hover over the gamemode you just created DO NOT CLICK IT
STEP 6) now go on your computer and turn on the lag switch (click attack) wait 3 second, NOW you can CLick the gamemode you just made and now go back to edit game mode then to you class that you made, delete the attachment that you made on the gun, then click the empty slot that never had an attachment. hover over the second sight you what to have, then turn off the lag switch and wait 15 good long seconds and then click the attachment you wanted for the gun and now you have just made a modded gun with two sights.
STEP 7) repeat for other classes