All technical questions will be answered and all technical issues addressed, the technology will be explained and expanded upon and the issue of history sorted out, once I am back at home and able to use my computer. For now, if folks could save up the questions, you may find that they are answered by the details I have yet to decide upon.
I will say this: I am not anticipating everyone having a specialisation. The idea is for a line infantry unit. Specialists would be brought in from outside. I have already stated in the opening post that there is a heavy weapons platoon in each company. They would normally be held in reserve and committed as and when required. Not saying that the platoon wouldn't have a specialist but she would be a rifle first - as was pointed out earlier.
For now, please assume that everyone wears the same armour, even officers, and the only difference is what is attached to it and the level of access to Battlenet.