Heres my concept, this is designed to be able to reuse all current assets and the majority of the functionality ideally.
stats wise to begin with you'd heavily reduce the damage and reduce the aoe somewhat.
we'd retain the current left click functionality as is, dropping mines. (Dropped mines should ideally do more damage or something, or have a larger AOE.)
On right click, however, you'd slowly rack up your available mines (up to 8) and if your bot permits the rough firing angle, the mines are lobbed a medium distance in a large spread over the area you are aiming (maybe a aiming circle or arrow?)
i.e, like 1 second per mine launcher to prime.
It would just make it alot more versatile potentially.
the core idea is we trade off alot of the raw power for the capability to deal more damage, and setup mines in more interesting areas.
//FWIW the lob concept for a secondary that creates zero gravity projectiles that settle and connect to eachother with a matrix would be a interesting anti-air style mine.