So submitting the list to a tournament would look something like...
++Spearhead Detachment +1CP (Chaos - Nurgle) [29PL, 520pts] ++
+
HQ+
Epidemius [5PL, 100pts]: Plaguesword
+Heavy Support+
Plagueburst Crawler [8PL, 140pts]: 2x Plaguespitters, Heavy Slugger
Plagueburst Crawler [8PL, 140pts]: 2x Plaguespitters, Heavy Slugger
Plagueburst Crawler [8PL, 140pts]: 2x Plaguespitters, Heavy Slugger
and this would be valid?