Is it Absolutely Necessary to have Jakals?

I have 40 berzerkers (they are probably my favorite model design GW has pushed out), 9 eightbound, world eater on a juggernaut, lord invonoctus and of course, Angron and Kharn.

I probably need a couple of rhinos for a 2k list but do I really need jackals for games? I still have 10 of them from the combat patrol box but I never painted them.

I’d love to hear your thoughts! Also if you have any lists where you don’t include jackals please share! Thank you!