There are two distinctly different weapons listed there: One is an early attempt at an assault rifle (The .30 auto) the other (9mm) is a machine pistol with far different ballistic differences
The .30 cal would be "adequate" for battle field work as the .30 has "sufficient" but not great knockdown at 200 meters or less, the range specified for an infantry weapon
The 9mm round would be pretty weak for military duty, little knockdown or penetration, more of a close in combat weapon
With blowback vs. the gas operated of the AK series, the San Cristobal is woefully outclassed, especially if the stated 25 rounds per minute are correct. (even if it was a typo and 250rpm is correct, the blowback design is very slow and does not allow high breech pressure to allow a "hot" loaded round or fater cyclic rates) I can certainly fire more than 25 rpm from a 9mm semi auto pistol Even considering reloading
The high velocity 7mm round, simple gas operated design coupled with very high tolerance in machining of the AK 47 has made it the most popular assault rifle ever made
The Uzi is again a machine pistol, not an assault rifle, but has a much higher cyclic rate than stated for the San Cristobal
The M 16 is a true assault rifle, not a machine gun and the .225 round has proven good at the 200 meter range given the characteristic cavitations of the small caliber round
One poster mentioned a 7.62 M 16; I have never personally seen one but can not understand the concept as it defeats the purpose of the M 16 design of light weight, low recoil high capacity assault rifle