"We are the Reaper, come to harvest their souls !" I was feeling doubtful about the previous version of this too. Still, I think "come" part is irrelevant. It's like "let's organize a party".
I think some of zerrikanian command lines need to be reworked. At least they made me feel not-atmospheric while working on them, antarians though were very great.
Edit: Actually some are ok, but some are lacking spirit if you ask me. I can say which ones are not really good in my opinion, one by one if necessary. But you seem to be doing great, if you spend some more time I believe you can add some spirit. But be aware of putting contradictory commands such as
"Stretch the lines further, dogs !"- Now, there's the commander calls his men dogs. Meaning no respect to them at all.
"We cannot hold this line; accept your weakness and fall back !" - Now, we see the same commander have some empathy here. Or it is what I infer from here. The commander calls his men to accept their weakness. It is something you say to very close friends, to give morale and show your empathy towards your friend. But the commander should be acting differently. Something like "FALL BACK YOU SPINELESS WOMEN!" no telling why they have to fall back. Because dogs don't have to understand what is the logic behind orders given. This is what I mean by contradictory. I may be able to give some more feedback later on about zerrikanian command lines.