How exactly do I shutdown, then restart the cluster?

So all three nodes report that they are master in elasticsearch.yml

node.master: true
node.data: true

However, when I run GET /_cat/nodes, I get this:

10.147.36.11 48 99 1 6.64 6.74 6.35 mdi - es-oc2-q01
10.147.36.13 60 99 1 4.59 4.60 4.15 mdi * es-oc2-q03
10.147.36.12 54 99 3 7.29 8.33 7.84 mdi - es-oc2-q02.rediv.int

I assumed that the presence of an asterisk * indicated that it's the master. Is that not the case?
Or does it indicate that all nodes are master-eligible and have chosen es-oc2-q03 node to be master via the quorum?

Does it change anything with regards to the running the commands you outlined? Meaning, the order of the nodes on which I run them?