And getting Supreme Sacrifice of being a Martyr is a moment every individual soldier wishes of.
They always put their motherland above their own family.
And with the same feelings, I guess the soldiers who died in the Pulwama attack were cherishing the moment when they died.
They could have been a little sad because they would have thought that they could have contributed a little more to their purpose, but still, they died while performing their duty.
It would have given them immense pride.