So if you get a nuke and you use it straight away without dieing, it kills the whole team, do all those kills count towards your kill streak? The enemy ones only, I imagine
When you use the nuke it kills everyone, including yourself. The people it kills will count towards your overall killstreak so long as they die before you (sometimes you may be the first to die, other times the last). Only the enemy kills count towards your killstreak though.