How to handle the staff under your supervision in a tough, hard, time stressed environment?

try to motivate your staff and be calm everytime, be a role model to them and treat them nicely and make them feel that they are important in that case they can work lightly even under pressure

Interact personally with each and every member of staff as a colleague, ask about problems if any they are facing during job, ask about their family, their objectives, planning about future, Tell them about current tough time in company; we have to do our carrier best performance this time and work as a team

1. Be patient
2. Be compassionate
3. Be resolute and firm, but keep your composure
4. Be discreet
5. Speak less otherwise your words will lose effect
6. No your job very well. Only your competency will bring respect
7. Be fair and just
8. Be available.

Be decisive, consistent and fair.  Be kind, and be firm.  Plan for predictable problems and have turnkey solutions on hand.  Be almost aggressive in insisting on no surprises to ensure that your staff bring problems to your attention before they become serious, be they business or personal (which is definitely going to happen in the environment you describe).

Most of all, think fast.