Hi Boltrig,
I just found this thread and really enjoyed your film (I've replied once and my Broadband burped and lost what I'd typed when I tried to post it) so here from memory is what I tried to say the first time. This is mainly comments on the content of the film rather than the technicalities of filming it of which I am sure there are others better qualified to comment and advise.
1. The snipers reticle is too thick and clunky looking I'm guessing the effect was a achieved with a "tube and 2 bits of string" type attachment on the lens? Maybe try adding the existing crosshair reticle in post production or perhaps for a more futurisitic look add a more funky illuminated reticle. Alternatively just a laser dot projected on the target during filming?
Simple keyring/pocket laser pointers good enough for this effect are dirt cheap now and if you go with a green or blue one then when some smartass starts on about "snipers don't use lasers because it gives away their position yadda yadda. . . ." you can explain that its a special laser outside the visible spectrum and only visible through the snipers scope!
2. It could just be a coincidence of timing and camera angle etc but your sniper
appears, to me at least, to be trying to provide the report of his rifle with his mouth!
3. No Soldier/PMC worthy of the name would put his weapon on the deck to climb onto the "loading dock".

I was first alerted to this by the click as he put it down and rewound to check!
4. If your Sniper/PMC1 takes the trouble to pull on a balaclava before approaching the "loading dock" then the least PMC2 aka "Sleeveless Man" can do is slap some cam cream on his face and maybe those arms too!
Oh yeah and I agree about losing the blood splat effect.
But in conclusion this is
your film which is set, I presume, in a future reality and since it is
your reality you are free to pick and mix which tips and advice you take and which to ignore!

Hope this helps or at least gave you a laugh!
Winch
EDIT Just remembered this comment which I lost from the first attemped reply! There is always a trade off between full military realism and what looks cool on screen! Assuming you're NOT making a training film then some unmilitary coolness is permissible!

_________________
Cheers
Winch
"Yea though I walk through the valley of the shadow I shall fear no evil for thou art with me. And together we'll kick ANY bugs ASS!"
You know who you are!
