I need a weapon that is shoulder fired that can deal with heavy monsters such as a minotaur and the likes, but light enough so that the user can carry at least another small arm without to much hassle.
Two of the weapons I am considering arming my explorers are either a rocket launcher the likes of the bazooka (60mm) and the second a recoilless rifle such as the m18 (57mm). I am trying to consider the pros and cons of each because in this setting they won't be facing heavy tanks like a tiger 2 or is3.
Both are HE based, but the main difference is muzzle velocity (rocket vs bullet). How much of a factor would this really be when fighting monsters, and would the speed difference between the two really make much of a difference (from what I understand chemical weapons such as hesh/heat aren't velocity dependent). It seems for the extra speed, recoilless rifles have a far greater back blast from what I've seen as well.
My main point of contention/question is what are the advantages/disadvantages of either in a setting like this, and if I were to scale the warhead size up and down would it tilt the balance in either way.
The M18 is a 57mm recoilless rifle used by the US in WW2. It fires a bullet like projectile to hit its target, gas is vented out the back of the gun to counter act the recoil affect from shooting the gun.
Bazooka- An anti tank rocket launcher that was man portable used in WW2. It had many iterations on it. Basically it was just a simple rocket launcher that could fire high explosive anti tank warheads. It was also recoilless because it was a hollow tube and rocket exhaust was directed rearward
Both systems have deadly backblast, as in if you stand behind when either is fired, your going to get seriously injured.
The minotaur in question will have some decent armor on them, think of like an interwar tank and some early WW2 tanks. (15-20mm on avg ends, and a max of 50mm on the higher ends (mm calcs are in reference to RHA or Rolled Homogenous Armor)). Height can vary for the avg sized to be 1.8m on the avg size to 4m on the max. The lighter they are the faster they are, the larger they are the slower they are. The largest ones are used more so in a support role than a classic in your face type of mob. Think like throwing large stones as artillery, or moving supplies etc.
Minotaurs would be the equivalents of tanks, where in they can take damage and dish it out. As for speed they would be understandably slower than a combat capable soldier given their size and armor ratings. If they can close in on soldiers it will be devastating, however they are not above simply throwing large objects like rocks/small boulders or setting up ambushes/ using their strength to set up a large scale ambush.