TL;DR - In ITS13, how many Intelcom Cards can you use in Frontline? So, in ITS 12, Frontline's points worked like the following; 4 For Farthest 3 For Central 2 For Nearest 1 for classified. The Intelcom rule from ITS 12; "Before the beginning of the game, but after choosing the Classified Objective, the player must inform to their adversary if that card will be their Classified Objective or their INTELCOM Card." Makes sense, you only have one card. However, in ITS 13, Frontline's points work like this, 3 For Farthest 2 For Central 1 For Nearest 4 Classified Objectives The Intelcom rule from ITS 13 "Before the beginning of the game, but after choosing the Classified Objective, the player must inform to their adversary if that card will be their Classified Objective or their INTELCOM Card." The description is copied from ITS 12 (Which is perfectly fine), just "that card" implies we only have the one classified. It needs to be updated to reflect if we can only use one Intelcom, or turn all of our cards into Intelcom.
IIRC there was never an official answer, however when we suggested very similar changes to the mission here the intent was that you could only choose 1 classified to act as an intelcom card. That thread was probably the basis for the changes to the mission so personally that's the way I'd recommend treating intelcom.