[~Ice*shOt]

Sorry, just typed anything while tested it, and I forgot to delete this. Now removed.

[HamletEagle]

There are some imporvements that can be done, but I find this useless. Let's say I'm walking around the map and I reach the bombsite at the moment when you give the reward. I would receive it, but in fact I did not helped the planter with anything.

Unapproved, I think this ideea has potential, you can try to do something more complex.