Well, well I was told having a true grit for completing it. Well deserved to say the least. Took me 3 full days to finish it, level 8-12 being a major pita. All slaves died on me rather quickly bar the very last one who served me well as a spotter, and with cross support fire.
Finishing boot camp to realize all my equipment gone along with Kelly and the smelly one. Somehow I did not feel any loss of my Remington or Benelli simply because of my appreciation for using high end guns recently. I miss them rookies though, just had a quick look around in the major cities but they nowhere to be found.
As for boot camp, I played it on beginner, started on lvl5, finished on lvl9 hooray!
EDIT: Companions were at the other entry point.
Some of the fight were incredible tough, see my advice below:
Spoiler!
Around level 8 try to get a hold of a 7.62 gun as later on 5.56mm ammo barely scratches the enemy. During night time don`t be afraid to sneak up close and shoot as with good camo they won`t be able to see you. However on later stages they equipped with nvg`s and ambient light scopes. Choose weapons wisely and clean them regularly. Go suppressed whenever you can, but never opt for a small calibre suppressed in favour of a 7,62mm. A 1% wear FN-FAL served me well throughout the later levels-1 to 2 shots drops most enemies.