My V2 of my really cool Space Marines, look at the first here: http://mocpages.com/moc.php/148857
About this creation
The Special Operations and Tactical Expertise Suit (SOTES) is an advanced version of the Space Marine trooper suit, equipped with the most modern technology and weapons. The bio-suit is adapted with a tough hide that acts as a super strong frame for the heavy machinery around it, making it up to 38 times stronger than the original bio-suit.
Here is shown the shoulder mounted plasminized-metal canon. The canon fires extremely hot plasminized, that is, turned into plasma, titanium that can melt up to three feet of steel without it being shot out of a canon at over 3000 meters per second and can reach a temperature of 1500° Kelvin or 2240.3 °Fahrenheit. The canon is constantly taking in information from the outside and targeting at everything that is near it. It can switch between targets in less than .023 milliseconds meaning it can switch and hit targets in mid-fire.
This is the newest weapon in the SOTES arsenal. New advances in lightning technology have created the High Velocity Ball-Lightning pistol (HVB). An HVB shoots ball lightning, a phenomena that can be recreated in labs, at speeds reaching 9500 meters per second. This is similar to the plasminized-metal canon but it also acts as an EMP when set at higher power, making it a very effective weapon against any technologically-dependant foe.
Since some tactical missions are dangerous and need to be an under the radar kind of thing, all SOTES also have a multi-use blade. The blade can stay solid for quick kills, unfold for high risk situations or thrown like a boomerang, making it one of the most effective hand to hand weapons created.
On the flip side, the SOTES also comes with a flip out shield used against subjects that need to only be detained. But this feature is also so that they can get a huge advantage against the enemy. The shield is covered tiny Pico-lasers, meaning a trillionth of a laser. This shield is covered in them, meaning that the whole shield can become a wall of death and eradicate a horde of foes.
The Gold on the arm you speak of, Berial, is a badge showing rank and skills. Similar to a barcode of sorts, the gold is just to show newbies that he's your superior, while a laser scanning device can detect the microchip inside and get all the data from the soilder, including all medical files, GPS coordinate map (where he went) and even what his favorite color is.