H.I.S.S. tank
- HISS tanks are Cobra vehicles from the Generation 1 continuity family.
The Cobra HISS tank is a type of tank. "HISS" stands for "High Speed Sentry".
Fiction
S.T.A.R.S. continuity
Overdrive offered the HISS tank along with various G.I. Joe vehicles and weaponry to members of S.T.A.R.S. for use in their battles against Cobra, oddly enough. Earthlings: THE S.T.A.R.S. need your help now!
Marvel Generation 2 comics
Some of the HISS tanks at Silent Castle were equipped with a new type of rail gun designed by Sidney Biggles-Jones. When Megatron attacked the castle, Sidney Biggles-Jones fetched a tank and blew a hole through Megatron. Impressed with the rail gun's power, Megatron agreed to a deal with Cobra Commander that would get him a new body. Once Megatron was rebuilt, Cobra Commander provided him with three radio-controlled HISS tanks to test the new body's abilities. Megatron destroyed them all in one fell swoop. Realignments
Cobra Commander apparently had brought a few HISS tanks with him when he travelled to Milleville, as they were part of the convoy that would bring the Cybertronian technology acquired from Megatron to a safer location. Hot Spot destroyed them all long before they reached their destination. All or Nothing!
G.I. Joe vs. the Transformers
When Cobra unearthed a number of deactivated Transformers, they reprogrammed them and gave them new vehicle modes. Optimus Prime, Ironhide and Ratchet were modified into HISS tanks and utilized during Cobra's first Transformer-aided act of terrorism. G.I. Joe vs. the Transformers #1 Cobra wasn't satisfied with the way Optimus Prime, HISS-14, functioned and had Doctor Mindbender take a look at it. G.I. Joe vs. the Transformers #2 Thanks to Wheeljack and Bumblebee, the three and all other Transformers were freed from their servitude to Cobra not much later. G.I. Joe vs. the Transformers #4
