Dlta squad armor is very durable too, if not more, and I believe they have shields as well, but im not certain.
Grunts are stupid, and not as physically capable as a Delta. (even with out the armor) Delta squad is highly trained group of COMMANDOS. Grunts cant measure up, so dont compare them.
Also, a member of Delta squad can still be EXTREAMLY deadly when working alone, however there almost unstoppable together.
MC what find that it would be rather hard to charge some with a Anti-armor weapon, and five different type of grenades. (not to mention a sniper rifle)
Katarn armor mark II (what Delta uses) is capable of withstanding simple frag grenades.
Yes, Grunts are stupid. I have to agree with that, but you see M.C. broke his SKULL and killed it in one hit, I don't expect the Delta Squad had trained their skull to be as hard as metal.
And if Katarn armor mark II is capable of withstanding simple frags, then why give M.C. frags? And besides, they have a friggin' SNIPER RIFLE! That's just not fair, you have to give M.C. better weapons...otherwise Delta squad will have (let's just say) equal durable armor, way better weapons, and out-numbers M.C. by far. Even if you give M.C. marines what's the difference? Marines aren't even that good.
I don't know anything about the Delta squad so...but if you say they are EXTREMELY DEADLY EVEN ON THEIR OWN, there's no way Master Chief is going to win. And they have sniper rifles, one head shot and M.C. would be killed. I believe that if M.C. have good enough weapons, he can beat the Delta squad.
*Place left thumb on the right side of my neck and perform a throat-slitting motion* You're gonna die in seven days!