I don't know exactly why but my guess is because of the genetic mutations that where preformed on Spartans made him grow taller.
Catalytic Thyroid Implant - Platinum pellet containing human growth hormone catalyst is implanted in the thyroid to boost growth of skeletal and muscle tissues
can be found on halo wiki in the spartan II augmentation procedures.
There isn't a red spartan in halo except for in the multiplayer mode There possibly could be a red Spartan in Halo. Noble 6 could be a red spartan for instance.
Spartans are generally 7 feet without there armor. In full armor they can be as tall as 8 feet.
halo wars
Yes, I think so. It won't be Halo 3 ODST but it will be about spartan 117.
No, you play as a SPARTAN-III.
No. John is a completely different Spartan. They are actually from completely different SPARTAN programs. John is a spartan II while Jun is a spartan III
NO halo is a science fiction video game so probably not
active camo spartan with spartan
yes
yes
No because the elites did not join forces with spartan 117 until halo 2
Master Chief is not in Halo Wars. However, there are three main Spartan IIs in Halo Wars and Spartan IIs who are unnamed that you can train for your army.