Tactical jackets are designed to offer optimal protection from elements while not restricting movement or adding significantly to the weight of the gear. There are types made for various conditions.
Yes. Unlike tactical jackets that are made to be worn under your plate carrier, bulletproof jackets belong to armored clothing and have ballistic fiber installed into a jacket with civilian design.
Depending on the circumstances, different jackets will be used by the military. The best jacket is the one offering most benefits to the wearer for the job they are doing.