They use titans bc they fit the warrior description fool. Clearly a titan fell first to the hive at the temple of crota and a warlock survived the raid attempt. Titans are the warriors and so it will look stupid using a warlock or a puny hunter wielding that huge sword. I bet oryx will be showed to be killed by a hunter. You complain about the post not being a favorites post but then you want to trash on hunters. Learn how to make an appropriate celebration post scrub.