First, equip dual weapons of any kind and grab anything (dumpster, carriage, etc.). Then, quickly switch to a big weapon (shotgun, AK-47, M16, etc.). You will now have a big gun in one hand and a little gun in the other. Note: Sometimes this will not work on the first attempt. By doing this you can cause more damage to your enemies (for example, by wielding an old vet in one hand and a MAC in the other).
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