I almost forgot. I got to send rounds downrange with a M110 8 inch howitzer and the 155mm M198. For those that have never seen real life grenades, rockets, artillery, etc. They look totally different than in the movies. There is no fireball. One second all is still, the next fraction of a second later the vicinity of the blast is filled with smoke and dust. A split second later you feel the concussion and hear a very low thunderous "boom". Also, the 40mm grenades fired by the M203 and similar weapons are relatively weak.