Marcos cannot cordon a big chunk of land and carry out search of a terrorist trail.
Thats not their capability.
My brother in christ listen
That's not how these operations work. You are right; MARCOS does not operate alone in this context. A team of 8 MARCOS is embedded with the Rashtriya Rifles (RR) and serves as the assault force. MARCOS does not cordon off entire forests like the RR does; that's not their role, and I agree with you on that point.
So how would MARCOS operate if called upon?
Think of how conventional forces supported DEVGRU operatives in Afghanistan, as described in
No Hero, Chapter 8. An 8-man DEVGRU team was supported by over 200 Afghan Commandos and 30 Army Rangers. In our scenario, the support would be even greater since we don't rely on air support.
The operation involved a drone providing overwatch, with SEAL snipers conducting reconnaissance to clear the way for the SEAL assault team. Meanwhile, Afghan forces and Rangers collaborated to establish a security and reinforcement perimeter, known as a cordon. A few Rangers stayed close to the SEALs to offer fire support.
Similarly, in this case, the RR would cover the ground, while the MARCOS, being a smaller team, would act as the primary strike force. Their role is not to cover ground but to execute precision assaults