I am sorry that I was so blinded by some of the dumber comments in this thread (much earlier) that I missed mariomike's excellently informed post about why firefighters don't use the "fireman's carry". He was bang on.
As someone who trains all the time to use drags and carries I'll comment as such. Taking the time first to say that I believe I might feel differently with bullets being hucked at me. Having said that, I feel I can comment on a drag’s effectiveness and the stresses one goes through in training. I have employed drags during a real situation on a few occasions but it was never as practiced and never pretty and always about three times faster. But if you want to speak about it from a simple training perspective...
Single person drag: as shown in the pics waaaay above, put the casualty into an upright position with your knee in their back to keep them upright, then reach through their armpits and grasp the arms - left hand on left forearm, right hand on right forearm. Lift and drag. Getting the person as high as possible will aid in this drag but might not be feasible in combat or in a fire situation where it seems that in both scenarios getting higher equals exposing yourself to more danger.
Note: we do not subscribe to the theory that one should grasp opposite forearms or wrists of the casualty. This can create a choking hazard for the casualty and is harder, in terms of kinetics, to accomplish.
Two person drag: we always have casualties/dummies who are wearing coveralls, thankfully...Roll casualty’s collar down and zip the covies to about mid chest. Person on either side grasps roll made with collar about three inches from center of collar and drag victim out. Seems to me this would be the best if one wanted to stay low.
There is a variant of this that sees a single person rolling the covies down and performing the drag but, in my experience, this is the hardest to do and the most back breaking.
Two person carry: the person at the head does the same as they would if they were going to perform a single person drag except when they lift there is a person at the feet. The person at the feet will cross the casualty’s ankles and grasp the coveralls at the bottom ankle thereby giving them a handle of sorts. Again, same issues with the carry as the single person drag, height.
I can see why some of this might not be realistic in a shooting scenario because someone may have been relieved of limbs. But from a mere training perspective it is a good test of strength and one that firefighters have included into their sporting event, the Firefighter Combat Challenge. The final event in the race is the dummy drag and the high drag is used. Now this is a race, not a fire. Were I to perform this drag in a fire I’d cook my head and likely expose the casualty to tremendous heat and smoke.
As far as the grass/gravel/pavement debate goes: when we train to rescue downed firefighters we use a technique called “humping” because, em, it looks pretty sexual. Basically in a two rescuer scenario you would have the person at the feet throw the casualty’s legs over his shoulders and his job would be to keep the casualty sliding on his SCBA cylinder as the person at the head used a DRD (drag rescue device, incorporated into our jackets) to pull. It is hilarious to see this happen the first time.
I mention it because a few fiscally minded Chiefs were concerned that too much training in this scenario caused damage, sometimes, to the cylinders and harnesses of the SCBA and at about 3 grand a crack they wanted to limit that. Those Chiefs are idiots. Is there a concern, yes. But it’s very minor. Point is, if you’re using drags to test someone’s strength then you can allow some latitude. But if you want them to learn this so as to use it in a real situation then you should amp it up and make it as real as possible.
As far as what has been easier for me, having done the military’s version of the fireman’s carry as well as the drags I use now for work: they both fucking suck. They both kick your ass. The carry involves a good heave and then steady motion and you can easily frig your back with that heave.. The drag leaves your knees feeling like you’ve just done up-he-sees-me-down for a mile (if done properly)
Dummies: there are tons of ways to make/buy one. There’s the Rescue Randy series, a pre made dummy meant for this type of thing. There’s the bundle of fire hoses in coveralls. Sandbags. Whatever. One of my best mates, who is elite level in the Combat Challenge (sub 1:45 time) drags skidder tires around, it works for him.
The thing I was fortunate enough to learn very early is that there are easy ways to do it all and if you were to watch someone who is highly trained in confined space rescue you’d see how they “manipulate” the victim to get them through passages the easiest. The body will bend and turn certain ways and will snap if you try others. As much as we say “life over limb” we also try to preserve your previous quality of life as much as possible. I could go further into confined spaces but it’s a deep subject and I do not think it relates, if you have questions though, ask me.
So, there, a full read on drags. Do with it what you will. As said, I don’t have to worry about a battlefield when I do this. However I do have to worry about exposure to heat and all things associated with that plus the fact that my casualty faces increased risk of getting dead the longer it takes me to get them out.