Update:
So I'm back at 100/104 guerrilla actions. The same number I was at on my previous save from last year. This time, however, I marked down
every radio call I got, using both lists. There were some differences in the lists a little, but now they're both exactly the same.
I'm missing three radio calls, again they're the same from both lists:
Dust Radio:
* Interception - Starts near the SE corner - spawned while near the House Arrest nearby
Eos Radio:
* Convoy (Capture) - Starts at FFZ Artillery Base, ends at Martian Council - spawned around middle of map
* Convoy (Destroy) - Starts at Martian Council, ends at FFZ Artillery Base - spawned while waiting around at Jenkins mission on right side
So if anyone has a pretty precise area to be for those radio calls, I'd appreciate it if you'd help me out.
Also, there seems to be another problem pending and that is the fact that I have, as previously stated, done 100 out of 104 guerrilla actions. Now I know I'm waiting on 3 radio calls but that'll only bring it to 103 out of 104!
Any one have any idea what that last one could be? All the icons on the map (I have now completed the game) are dark green which means they're done.
I suppose the only thing I can do after the radio calls (knock on wood) is to re-do all the stuff on the map, starting with the house arrests as I remember someone else posting that even though they were all dark green for him, he re-did them and found a few that then counted for his total and it helped him get the trophy.
Anyone else with any insight? I'd really appreciate it. Thanks!!

Edit: 2 radio calls left:
Dust Radio:
* Interception - Starts near the SE corner - spawned while near the House Arrest nearby
Eos Radio:
* Convoy (Destroy) - Starts at Martian Council, ends at FFZ Artillery Base - spawned while waiting around at Jenkins mission on right side