I liked the first chapter better. I'm not going to lie, "lone wolf", is played out. Try setting yourself apart from the "norm", if you will.
"Nomad", "Transient", "Drifter", "Wanderer", Hell, I would even try "Rolling Stone". Branching out from everyday word usage, will really help you stand out.
Also, when writing dialogue, such as:
"I am going to be leading this fire team." She said as she stormed in.
Instead of ending the dialogue with a period inside of the quotations, it is correctly written as:
"I am going to be leading this fire team," she said as she stormed in.
You aren't starting a new sentence after she speaks, it is a continuation of the same sentence, so therefore, a comma.
However, if you aren't going to say anything else after the dialogue, then ending it with a period inside of the quotations is correct.
"John, go to the store and buy milk."
John didn't want to go, but he stopped playing Destiny and went anyway.
Just a few things I saw, very minor, and very common. Anyway, keep it going, your story is solid!
Thanks. The whole period thing is just my natural sentence writing. My friend normally checks for stuff like that but he hasn't been here. I always let someone proof read my stuff before I send it to the forums. Thanks though!