[jyl]

I’m rather convinced that the 50 Rangers would make the difference. The range and accuracy of their optic-equipped M4s would make each Ranger a deadly shot on any Mexican soldier who broke cover, any mass charges would be slaughtered by the machine guns, and the snipers would have more range than the Mexicans’ longest-range artillery. Running out of ammunition would be the main issue, so M4 selectors would have to be firmly set on “single”. Seems like 50 Rangers would normally carry over 10,000 rounds, and if they knew they were going to defend a static position they would presumably bring more.