Generous Tit for Tat (as described) isn’t the same thing as Tit for Two Tats. Tit for Two Tats will cooperate after the first defection, then defect after the second. Whereas Generous Tit for Tat will defect after the first defection, but then always cooperate the next step. So for 2 defections in a row, they behave opposite.
McPhage t1_jax8dka wrote
Reply to comment by Initialised in Game Theory's ultimate answer to real world dilemmas: "Generous Tit for Tat" by TryingTruly
Generous Tit for Tat (as described) isn’t the same thing as Tit for Two Tats. Tit for Two Tats will cooperate after the first defection, then defect after the second. Whereas Generous Tit for Tat will defect after the first defection, but then always cooperate the next step. So for 2 defections in a row, they behave opposite.