Humans have always been a striving industrial species. They have now improved the production of supplies to USCM troops around the galaxy.
Crafters now can make pistols using the pistol blueprints:

Pistols are weaker than pulse rifles, but have a much greater chance of not breaking. Crafting them is also much easier.
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Marine crafters can now also recycle any item in their inventory and turn them into resources!
Using the Resource Extractor:

Marines can now use this item and recycle any object. Most crafted items retain some mineral base to them, when run through this machine, they are able to be extracted. The resources are then distributed evenly between all types of resources for balanced building.
Crafted items may yield more resources than standard items such as clan papers and clone lab tools.
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Marine crafters have also had a reduction in prices of the blueprints used to create items. Thus moving their industrial ways even moreso into the future.
Soldiers and the like will now see more weapons and armor being made through production than ever before as the assembly lines heat up for the Humans.