Your 1270 SAT score is low for A&M and will be viewed as an objective measure of your abilities that has nothing to do with how competitive your high school is. You will need to focus on improving your score a 100 points or so and get your class rank up. A&M does not factor in the alleged competitiveness of your high school. A&M is interested in YOUR stats, not the impressive stats of your classmates.
You may be eligible for one of A&M’s “Alternative Admissions” programs which are explained on its website.
Good luck!!