Hey mac. I love the character. Approved! The only nitpick I have is I am unsure a light machine gun (however stripped down it may be) could be plausibly concealed under a jacket. Heck it'd be hard to conceal an mp7 under a jacket. Its dimensions are 41.3cm long (16.3 inches) with the stock collapsed by 17cm high (6.7 inches). Both those weapons could however be concealed inside your rucksack or (as silver has demonstrated) the mp7 could be carried in a messenger bag which would permit quick access should you have to defend yourself in an emergency. 

This applies to all players. Please consider how you are going to practically conceal your weapons as guns on display will at the very least be threatening to npc characters. If you think your current primary/secondary is going to be too hard to get to once concealed look into acquiring a handgun.