IW5 Spec Ops and Survival
Self explanatory. MW3 is missing a good PVE mode to host or play solo with Pluto enhancements.
@CPT-Blargington RN admins are working on more important things maintaining the games that pluto supports. Also, if you really want them to add spec ops and want to use this forum thread properly, please read this https://forum.plutonium.pw/topic/7248/how-to-submit-a-feature-or-bug-bounty.