No, you can only pick up a new kit that the person dropped. So you can go from assault to engineer etc
You cannot. You have a primary and a secondary. You have to have a secondary.
You may find it somewhere in the game and you cannot carry two primary weapons and pistol together. There are only two primary weapons and one can be pistol.
No. All airplanes can't carry weapons but some airplanes can carry weapons. If it is a military aircraft so yes they can carry weapons but if it is a friendly aircraft so no they cannot carry weapons.
It isn't really a cheat, but some mods will allow you to carry multiple weapons, like SuperHero Mod, or Zombie Mod. You can shift through them just like in HL.
people carry weapons for protection
Yes, airplanes can carry weapons. That's quite true that some airplanes can really carry weapons.
A knight typically carried a sword and a shield as their primary weapons. The sword was used for close combat, while the shield provided protection from enemy attacks.
No
No. Friendly airplanes are civilian aircraft, civilian aircraft do not carry weapons at all, they just carry passengers and items.
No, drummer boys of the civil war did not carry weapons. All they did is drum.
The space shuttle doesn't carry weapons.
In general, we live in a peaceful society in which it is not necessary for people to carry weapons, whether concealed or displayed. However, depending upon a person's specific circumstances, it is sometimes useful to carry weapons and sometimes useful to carry concealed weapons.