Reinforcements are called even if you're still alive.
Last standing during a Wave (once).
"Call the reinforcements! I... I've bumped my little toe!"
Crybaby is an unlockable active Ability. It allows the Trooper to deploy the Next Wave without dying first, but only if he's the last Trooper remaining during the current round. The ability is triggered regardless of actual presence of teammates to be deployed. If multiple troopers survived on battle field and they all having this skill, Crybaby will be activated.
If the trooper is deployed alone (for example, if multiple Reverse Attacks or Spies reduce the deployment to 1, or the trooper enters in a vehicle which takes up the whole deployment capacity), Crybaby will trigger immediately in the first case and as soon as the trooper dismounts or blasts out of the vehicle in the latter (provided he survives the explosion).
Good for outnumbering the enemy, expecially if some of the soldiers in the wave have the Survivor skill, it has a similar effect to Martyr, except it is slightly less likely to trigger since it requires the soldier to be the only survivor on the team.