015 Tank

Tank is the Army dude.

He has version is G1, G2, and G3.

Despite his military background, he was never given a weapon.

The G1 figure has two bandoliers (pocketed belts) slung across his shoulders.  He is also wearing a helmet known as the M1.  This was a very popular combat helmet used from WWII until 1985. 

There is one very interesting G1 version of Tank that came with the Daredevil Race Set.  Instead of his normal drab and camo colors, he is bright red, yellow, and purple.  He seems like a Hot Feet figure, but is not designated as such, and he does not come with a light-up board.  Oddest of all, this figure has a large "Z" on his helmet.  No other version of Tank has writing or letters on the helmet.  I don't know what the Z means -- it has no context to the figure or the toyline.  Also, it is strange that Tank is the only figure in this playset despite it being a "race." Finally, no other TDD has a Z or any other letter on his hat or helmet, making this particular figure seem really weird.

The G2 figure is the G1 figure with arms.  His is pointing forward with his left hand.  His right hand is kinda being held behind his back.

The G3 figure has a two-finger pointing gesture on his right hand.  Depending on how you position the arm, this may mean "look," or "file in."  His left hand is giving a thumbs up.  This could mean that there is a "friendly" ahead, whereas a thumbs down would mean "hostile."

The G3 Tank was also designed to reflect updated military attire.  He is wearing what is known as the PASGT (Personnel Armor System for Ground Troops).  This is the style of combat helmet and ballistic vest used from 1985-2005.  Tank has two G3 versions in camouflage that you might call "woodland" and "arctic."  Then there are two more versions of Tank painted instead on the basis of aposematism rather than camouflage.  The point here is to stand out rather than blend in.  They painted his helmet "safety orange" (aka blaze orange or hunter orange) in one variant, and yellow in the other.