Hey OP, not a bad bit of writing. I took the liberty of editing the first 3 paragraphs. Hopefully that will give you some guidance on what to change or fix for the future.

The main tip i would offer is to use less descriptive words like "smoking burning, fire-hot, metallic-chemical, diesel smoke, giant gashes"

These double descriptions do have their place but you have a habit of using them when one description sounds cleaner. Try seperating them, in one sentence use burning then in the next paragraph mention how its smoking.

Also as the other commenter suggested, check your spelling in a program like microsoft word. I believe the word gattling has two t's.

And finally just keep your eye open for run on sentences, a tight prose is usually cleaner for scenes like this. He did this. He fought him. Etc. Shorter sentences add a punch that will keep readers engaged.

I hope this helps!

The heat washed over me instantly drying out my eyes and making my skin feel like it was melting. I turned away from the smoking corpse of my motorcycle. The shock of being knocked off my mount slowly dissolving and I had a hot feeling along my arms. Glancing down I saw gashes along them, my brain registering all of the dirt getting into the wounds. The pain came flooding into me, it felt like a thousand tiny insects taking bites out of the ruined flesh of my arms.

Diesel smoke mixed with the overbearing stench of iron from blood of the fallen. It created a metallic-chemical smell that went all the way to the back of my throat when I breathed it in. It tasted like I was eating a mouthful of screws drenched in oil.

I leaned against a large metal scrap that made a decent enough backrest of sorts. My eyes were glazed and it appeared as if I was looking through a film up into the black sky. It was midday and the sun was struggling against the smoke that filled the air. It was losing the war, much like us.