1) Change to the 46 playbook. With the falcons you have to pressure the QB cause your cb's can hold for a while but will break if you give your opponent time to make their reads calmly.
Base defense: Cover 3 press or Cover 1 press depending if you like zone or man.
Basic Zone blitz: 3 deep blitz, ouside blitz (46 bear)
Basic Man blitz: Strong/Weak Blitz, Sam Blitz (46 bear)
For heavy zone defense:
Nickel 3-3-5 cover 3, cover 3 flat and dollar cover 3 and cover 4.
2) Lineups (depends on situation, and opponent style):
a) Run/Short pass oriented
Hill.......Decoud.......Coleman......Houston
...Nicholas.......Lofton........Peterson......
Abraham....Jerry....Babineux.....Sidbury...
b) Heavy Pass oriented
Hill.......Decoud.......Moore......Houston
...Wire.......Lofton........Peterson......
Abraham....Jerry....Babineux.....Sidbury..
When you want to blitz put anderson in for jerry and coleman for peterson in lineup (b)
I know a lot more stuff for the falcons (set up specific blitz, heavy zone D, etc.) so just ask if you need something specific.