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Research what modern fighting is actually like. Don't pay too much attention to the details, those can be googled easily enough whenever you need to double-check something. What you should be pay...
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Source: https://writers.stackexchange.com/a/43220 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
Research what modern fighting is actually like. Don't pay too much attention to the details, those can be googled easily enough whenever you need to double-check something. What you should be paying attention to is the emotion and sensations involved. The ear-splitting crack of a rifle, so loud you can feel it in your chest and in your sinuses, the acrid smell of gunpowder, the roar of armored vehicles, the metallic THUNK of bullets striking armored plate. In fact, if this is possible where you live, spend a day at a public shooting range. TV and Youtube just can't properly do justice to what it feels like to shoot a gun.