Move your crosshair and press 1, 2 and 3 where you want the dots to be. Bit faster for triangulation.
About disks, they're probably making it easier next patch but for now I reccomend switching to a lower difficulty, which helps all around (easy++ only asks for 1 server info thing and at most 3 signals, tho that might be bugged)
Since upgrades make the experience much more enjoyable, perhaps you could start a new save, sell the mre barrel, put the points into atm and get money, then transfer money to your central save file and cash it out at ATM to get points back? You can do this multiple times until you feel you have enough points.
Just some suggestions for what you could do.