Kammala jumla mai zuwa: An nada shi kwamandan rukunin 'yan bindiga na 172 a ranar 9 ga Satumba, Kostitsyn ya jagoranci rukunin yayin da ya fara kafawa a Yankin Tsaron Moscow. An sake mayar da shi zuwa umurni na 183rd Rifle Division, yanzu a cikin Reserve na Babban Babban Kwamandan, a ranar 30 ga Satumba. Tsakanin 7 da 20 ga Janairu 1943 an tura 183 zuwa Voronezh Front, tare da shiga rundunar soji ta 40. Kostitsyn ya jagoranci rukunin a cikin Ostrogozhsk<unk>Rossosh Offensive, Voronezh<unk>Kastornoye aiki, da Yaƙin Kharkov na Uku. Don jagorancin sashin a cikin Kharkov Offensive Kostitsyn an ba shi lambar yabo ta Red Banner a ranar 25 ga Maris. A watan Maris, sashin ya yi yaƙi don kare Kharkov a lokacin na biyun, kuma an tilasta shi ta hanyar ci gaban Jamus don komawa baya zuwa Seversky Donets, bayan haka ya kare matsayi a yankin Krutoy Log da Nizhny Olshanets. A farkon watan Afrilu an sanya shi zuwa layin tsaron baya na sojojin kusa da Prokhorovka. Rukunin ya kare matsayinsa a farkon shekara ta
Yaƙin Kursk a ranar 6 ga Yuli, yana kawar da hare-haren Jamus. A matsayin wani ɓangare na Rundunar Sojoji ta 35 na Rundunar Sojoji ta 69, Kostitsyn ya jagoranci 183rd a lokacin da Soviet ta yi nasara. An fara harin ne a ranar 21 ga Yuli, ana kaiwa layin Jamus hari tsakanin Novy Oskol da Verkhnye Olshanets, waɗanda aka kama kafin sashin ya ci gaba zuwa layin tsaro tsakanin Height 217.4 da Dalnyaya Igumenka. A ranar 24 ga Yuli Kostitsyn da jami'an ma'aikata da yawa sun mutu sakamakon harin kai tsaye da aka kai wa sansanin kwamandan sashen. An binne shi a Novy Oskol, an ba shi lambar yabo ta Yaƙin Patriotic, aji na 1 a ranar 24 ga Agusta don jagorancin rukunin a Prokhorovka.