CQB it can work, but at least one gun needs to be full auto (modded M93r for example) you keep the full auto is your off hand and focus on your primary hand.
I used this idea to cover two possible entries while holding a room. Worked more often then not. Just make sure you can easily holster both weapons, because its easier to reload one hand free.
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load out: 
-Discard after Use 5 times so far-Calm under fire-Quartermaster-Tactical Reloader-I Mean Business-NO WAY?-Cretchien3-
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