The more a weapon costs, the farther you will have to send it away to be repaired. Weather isn't neutral. If you can't remember, the Claymore is pointed towards you. The Cavalry doesn't always come to the rescue. Napalm is an area support weapon.
Mines are equal opportunity weapons.
B-52s are the ultimate close support weapon. Killing for peace is like screwing for virginity. The one item you need is always in short supply. Interchangeable parts aren't. When in doubt, empty your magazine.