Old Snake said:
As we move into the 21st century the battle fields are moving to closer and closer battle ranges across the 3 dimensional space of urban battle. this means that the 19th, 20th century power of a Army Artillery falls back as against a insurgent force or dug in army can use noncombatants as human shields. Meaning striking at them with Rockets mortars and Cannon can quickly turn in to a disaster. the only way to route it out is infantry. Urban conflict always favors a prepared defender. look at Gaza, the Mexican boarder and the Costra Nostra. They have tunneled fortified and gone deep. a prepared foe. Artillery fire would have to try and break through millions of tons of dirt and reinforced concrete. other then a bunker buster the only way to clear out that nest of vipers is to send in your own snake.
light infantry is no longer a few magazines of ammo, a uniform, a weapon and good luck. night vision, communications body armor and it's only going to get heavier as threats of urban keep coming.
Now As I see it we are going to see two types of Infantry Powered Exoskeleton
The Exosuit and the Exoskeleton.
the exoskeleton is what we see here now. this is a hard mechanical system that fits around the body. a true wearable robot.
( this is a rejected line art from Iron Man 2)
this is a nearly entirely mechanical device. it's scaled larger than a human because it has to fit over a human.
meaning you could even build to "Hulkbuster" Scale although the practicality of such is questionable. outside of short Rampages a Hulkbuster would be mostly a giant target. the key advantage might be external heavy weapons and specialty equipment mounting as well as a wider range of strength enhancement.
disadvantage is it's bigger then a human so close close quarters would be inhibited. it's louder because of pumps and mechanical elements, it's susceptible to conditions because of exposure.
The Exosuit is what we see also merging in the form of Warrior Web from Harvard. this is based around a soft structure. it mimic nature in it's movements and function.
[video=youtube_share;CWwm39Xx2YQ]http://youtu.be/CWwm39Xx2YQ[/video]
( Old snake MGS4)
The Key advantages are it's human sized uses a less complex structure of motors. it might offer the ability to use it amphibiously because the parts are smaller and the structure is intended to lay much closer to the body. additionally it's likely to be cheaper to tailor for the wearer, easier to conceal It can be worn under a uniform being worn over the skin. it might also prove a point of mounting for climbing and parachute harnesses of the future.
the key disadvantage is less ability at power enhancement, zero ability to adapt heavy weapons to literally mount.
Both may have the ability to mate with body armor system and offer limited protection from fragmentation and impact. critically neither is really going to speed the wearer beyond there top physical speed. for that a system that alters the way we move for that some thing like this.
[video=youtube_share;VCnT-qWTE84]http://youtu.be/VCnT-qWTE84[/video]