Probe Team Success Rate

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Relevant forum thread

The thread above correctly lists all risks. The risks in the thread correspond values in code like this: RISK 1 = 0, RISK 2 = 1, etc.

Contents

Formulas

Chance of success

target negative PROBE effect = target PROBE rating + 2 (if Cover Ops Center present at target base), limited in [-2, 0] interval
probe strength = probe morale / 2 + target negative PROBE effect + 1
chance of failure = risk / probe strength
  • If roll succeeds and there is HSAHunter-Seeker Algorithm - another 50-50 roll.
  • If roll fails and probe is enhanced and there is no HSA - another 50-50 roll.
  • If roll fails and probe is enhanced and there is HSA - no changes.

Chance of survival

target negative PROBE effect = target PROBE rating, limited in [-2, 0] interval - not sure if if Cover Ops Center plays any role here
probe strength = probe morale + target negative PROBE effect + 1
chance of failure = (risk + 1) / probe strength
  • If roll fails and there is HSA - no changes.
  • If roll fails and there is no HSA and probe is not enhanced - no changes.
  • If roll fails and there is no HSA and probe is enhanced - another 50-50 roll.

Values

Chance of success

Morale (enemy PROBE + 2 if COC in base) Strength value RISK value
0 1 2 3
Disciplined/Hardened (0+) 2 1 1/2
Disciplined/Hardened (-1), Veteran/Commando (0+) 3 1 2/3 1/3
Disciplined/Hardened (-2), Veteran/Commando (-1), Elite (0+) 4 1 3/4 2/4 1/4
Veteran/Commando (-2), Elite (-1) 5 1 4/5 3/5 2/5
Elite (-2) 6 1 5/6 4/6 3/6

Chance of survival

Morale (enemy PROBE) Strength value RISK value
0 1 2 3
Disciplined (0+) 2 1/2
Disciplined (-1), Hardened (0+) 3 2/3 1/3
Disciplined (-2), Hardened (-1), Veteran (0+) 4 3/4 2/4 1/4
Hardened (-2), Veteran (-1), Commando (0+) 5 4/5 3/5 2/5 1/5
Veteran (-2), Commando (-1), Elite (0+) 6 5/6 4/6 3/6 2/6
Commando (-2), Elite (-1) 7 6/7 5/7 4/7 3/7
Elite (-2) 8 7/8 6/8 5/8 4/8