The Army is testing a new exoskeleton that's halfway between Iron Man and the ALIENS Power Loader suit

Aim Control Enhancers (ACE) are a small arms stabilization exoskeleton designed to assist soldiers in handling large weapons. From Task and Purpose:

The Army is currently experimenting with a piece of technology as part of its Next Generation Squad Weapon (NGSW) effort designed to enhance a soldier's aim by stabilizing a weapon's barrel against unnecessary or unintended movement, Task & Purpose has learned. — Read the rest