LOL Bart, all good. I enjoy exploring all facets.
...but I'm gonna disagree with you again.
"True Bounding mines" is what I meant by OTR -- Off The Rack. While the pressure plate thing is Hollywood, it comes from art imitating life imitating art imitating ... etc. The lure mine has been used but is something which is frowned upon by Western doctrines. Again, it's a rare occurrence which would only be emulated by the most shrewd and callous of APM techs. This includes Yugoslavia and isolated instances in the Middle East -- although in some reported cases it's been theorized that it is actually a misfire which is actually a faulty on-pressure trigger. Nonetheless, given the parameters of the story in One Wrong Move, it's entirely plausible the fellow, a Westerner weened on movie/TV tropes, would construct something as ruthless as a pressure-disengaged trigger. I agree it is very unlikely but hardly impossible. I'm totally with you on typical tactics by average people. I just make a distinction between what is normal and what is possible.
I forget the inventor's name but during WWII he, among others, offered that some anti-personal mines should be pressure-disengage triggers in order to kill the key personnel who often walked behind vehicles, including comms, medical, and command units. It's an idea as old as the invention of the mine, just not one in wide circulation as deployment standards changed during the Cold War.
Insurgency and the fight against it has, however, returned many of the old land war techniques of WWII and, understandably, some "blood and guts" practices have returned to prominence. When it's not about nuclear subs, fighter jets, and Hellfire missiles, old ground-pounder tactics still apply.
As for the sniper tactic (and I stress I learned this before Saving Private Ryan and Enemy At The Gates), it's absolutely not just a suicide technique. It's another tactic employed to great advantage in the Battle of Stalingrad. However, it's most famous for that Saving Private Ryan scene, which was indicative of the staggered retreat of the Germans. Thus it became popularized as a 'suicide technique' because of the conditions of the Nazi snipers who were left behind to slow the enemy at the cost of their lives. And, of course, its inherent drama makes it tempting for screenwriters. But it's been reported since the invention of the sniper -- circa the late 1700s. (The term "sniper" was coined in the 1800s according the interwebz, but the became defined earlier than that, thanks to the British Army and the American revolutionaries).
However, it's just another tool in the arsenal of any trained sniper. It's far less effective these days, when facing an enemy with modern gear, but against under-equipped and under-trained troops, it's still a valid option.
One thing I learned in talking to ... certain people: No tool and no tactic is better than the others, especially in sniping. The best soldier (sniper) is the one who knows which tool or tactic to employ in each situation. Become locked down in routine or by-the-book methodology and you might as well surrender or suicide.
And the problem we have in thinking what's "normal" often comes from our research which is vastly one-sided at times. We focus on the training our troops receive and take that as rote or, worse, "best". It's the tactics of the soldier who is not trained/restricted by Western conventions which are often disregarded. Take a look into South American cartels and their mercenaries, as well as many of the African hotspots, especially Somalia. You'll find that tactics differ the world over -- as does their effectiveness.
The rules (training) are in place for good reasons, but more important than learning the rules is learning WHY they're there so that you know WHEN to break them. Soldiers need, need, need that rigorous training to overcome the human instincts which they're born with. I won't argue with that. But the exceptional soldier is able to rise even farther beyond that in order to think creatively (or "laterally" as I've heard used) and overcome situations beyond what they've been prepared to face. It's these exceptional individuals who often comprise the elite forces units
...and I'm digressing.
...and, also, I am slightly depressed with the realization of how much attention I've paid to the art of killing.
(and I realize not naming my present-day sources is rather hollow but there ain't nothing I can do about that)