1 of 2 reasons....they were going to Kidnap the Amb. so Obama could Swap the Blind Sheik for him or else it’s about Illegal Arms Dealing......or both.
This was a planned operation. Even Hillary Clinton admitted that right away.
When you plan an operation, you plan for the equipment you will need.
For a kidnapping you would need: tools and explosives if you needed to get the victim out of a secure location; Getaway vehicles; only enough people to do the job; a means to secure the victim.
Do we see any of that at Benghazi?
No.