Well I am going to toss in my two cents worth here.
I agree as to the rationale behind the burst fire. The mechanics did add more parts that can fail. also if you stop in mid burst you may have only 1 shot on the next go round as the cam may be on the last lobe.
Training is the answer but under the stress of combat the techno answer is about all thats going to work with certainty.
When I build one of our 502 Thunder Sabre's in select fire we usually go with simple Safe-Fire-Auto parts kit. on some we have done a 4 position kit but the customer (Dept) writes the order.
FYI
The Thunder Sabre is an AR type rifle in a short 50 cal like the Beowulf.
I agree 100% with the British Soldier. Definately the pervue of the highly trained pro.
Something for everyone Check out this little bad boy
This is a 7-1/2" barrel 50 cal Thunder Boss.
Short entry gun with awesome firepower.
335 grain slugs at 1450 FPS comes with Eotech and CMT Laser
CR