You guys should probably stop to think for a moment why the designers limit the number of weapons. It's not because they were lazy and it somehow magically allowed them to get off with less work when building the missions. It's because out there in RL soldiers don't carry an assload of guns at the same time and then another truckload of ammunition for every one of them. They carry an assault rifle, a sniper rifle, or a light machine gun, possibly a sidearm and a few handgrenades. Some in the squad would then carry additionally an AT missile/rocket or an AA missile, some might carry mines of some sort, assuming they would need such on their mission. I don't know how many of your have marched kilometers carrying a soldier's full equipment, so I will enlighten you: Even a single assault rifle will start to get annoying before too long because it's heavy, gets always in your way, and it's generally cumbersome, yet you must protect it like it was your bride. If somebody had tried to make me carry a few weapons equal to it, I'd have jammed them down this somebody's throat. Not to mentions there's no way in hell you'd move like you should when under fire if you had a meter long metal sticks pointing in every direction from your back.

Like I said before: Different games have different goals. You can't try to build semi-realistic missions if you allow the soldier to carry ten men's worth of weapons and ammunition. Get a different game. Having made missions for both types, I can tell they require different kinds of thinking from the mission maker, but it's not like one would be for a lazy developer, one for a hard-working. They are just different. It's good both types are being made.