1000 point list

New to 40k and was wondering if this is a good 1k list or if people had any advice as to how i can make this better.

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+ FACTION KEYWORD: Chaos - Death Guard

+ DETACHMENT: Virulent Vectorium (Worldblight)

+ TOTAL ARMY POINTS: 1000pts

+

+ WARLORD: Char2: Lord of Contagion

+ ENHANCEMENT: Arch Contaminator (on Char1: Biologus Putrifier)

+ NUMBER OF UNITS: 10

+ SECONDARY: - Bring It Down: (2x2) - Assassination: 4 Characters

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Char1: 1x Biologus Putrifier (85 pts): Hyper blight grenades, Injector pistol, Plague knives

Enhancement: Arch Contaminator (+25 pts)

Char2: 1x Lord of Contagion (120 pts): Warlord, Manreaper

Char3: 1x Malignant Plaguecaster (60 pts): Bolt pistol, Corrupted staff, Plague Wind

Char4: 1x Tallyman (50 pts): Close combat weapon, Plasma pistol

10x Plague Marines (190 pts)

• 9x Plague Marine

2 with Plague knives, Plague spewer

2 with Blight launcher, Plague knives

3 with Heavy plague weapon, Plague knives

2 with Plague knives, Plasma gun

• 1x Plague Champion: Plasma pistol, Power fist

1x Chaos Rhino (85 pts): Armoured tracks, Combi-bolter, Havoc launcher, Combi-bolter

3x Deathshroud Terminators (160 pts)

• 1x Deathshroud Terminator Champion: Icon of Despair, Manreaper, 2x Plaguespurt gauntlet

• 2x Deathshroud Terminator: 2 with Manreaper, Plaguespurt gauntlet

1x Foetid Bloat-drone with heavy blight launcher (120 pts): Heavy blight launcher, Plague probe

10x Poxwalkers (65 pts): 10 with Improvised weapons

10x Poxwalkers (65 pts): 10 with Improvised weapons