New boost item: Temporary 100% link suppression (for field ops, make red fields on map)
Now that we have linking under fields, there is a legitimate concern that a fringe use-case will occur where a short link could be created under a field during a major fielding op to block it.
To give an option to fix this, I propose a new boost item that injects chaotic XM into a portal. This one-time item is used at a portal, making all fields connected to it turn from green/blue to red. While under chaotic XM fields, no linking is allowed.
The timer for this boost would be approximately 5 minutes, with a dollar amount high enough that using it to stop players from playing would be prohibitively expensive.
This would also make it visible on intel that there is an active attempt at a fielding op, giving the other team a chance to start to respond (seeing red fields pop as a warning). Additionally, being covered by a red field in the scanner would make it visually differentiated, so you know there's full link suppression active.
Side bonus: Red fields! More options for the field-art people! Also, introduction of red-faction corrupting the portal network.