The side missions are randomly spawned and I have noticed that the CBRN ones are not always so popular.
However you may find a Zeus or Mod online who might be willing to build a Zeus mission in this theme. All you have to do is pop a request in side when you are online and maybe one of us will put something fun together.
I feel that this adds variety to the challenge of these objectives. If everything were to be cleared in the same way, things would feel repetitive. Loading with explosives and planting them adds more than just pure pew pew.
I have said this before and strongly feel it is important to consider when making changes but if one spoonfeeds players too much they will get bored and either leave or look for their own entertainment.