The army list I won a small local tournament (ITC ruleset) with. My buddies played Stygies AdMech, Biel-Tan Eldar, Iron Hands and Alpha Legion.
We played a 4x4 board which benefits the slow Death Guard quite a bit. I won all but the last game vs Alpha Legion because I was too aggressive by that point and wasted the Daemon Prince first turn by letting an enemy Defiler catch him in
CC
In retrospect I would switch the Curse of the Leper and Miasma of Pestilence powers between my two
HQ choices because the Plaguecaster got killed first turn in 3/4 games (was very unlucky with roll for first turn and got Stygie'ed / Alpha Legion'ed / Focus Fired) and try to bring something more useful than the single Meltagun.
++ Patrol Detachment [44
PL, 750pts] ++
+
HQ +
Daemon Prince of Nurgle [9
PL, 180pts]: 6. Curse of the Leper, 1. Revoltingly Resilient, Malefic Talon, The Suppurating Plate, Warlord, Wings
Malignant Plaguecaster [6
PL, 110pts]: 1. Miasma of Pestilence, 5. Putrescent Vitality
+ Troops +
Plague Marines [10
PL, 123pts]
. Plague Champion: Boltgun, Plague knife
. 3x Plague Marine w/ boltgun
. Plague Marine w/ Special Weapon: Blight launcher
. Plague Marine w/ Special Weapon: Blight launcher
Plague Marines [7
PL, 102pts]
. Plague Champion: Boltgun, Plague knife
. 3x Plague Marine w/ boltgun
. Plague Marine w/ Special Weapon: Meltagun
+ Elites +
Foul Blightspawn [4
PL, 77pts]
+ Fast Attack +
Foetid Bloat-drone [8
PL, 158pts]: 2x Plaguespitters, Plague probe
++ Total: [44PL, 750pts] ++