Mymearan wrote: Do you think the Sternguard + the ML1 libby dropping in alone would make back their points?
They definitely can, as long as your target prioritization and placement is right. If the sternguard are naked, target infantry/command/characters and use the special ammo accordingly (normally hellfire, but not always). If you want them to take on something bigger, give them a few combi-meltas OR combi-plasmas (not both!). They are great for alpha striking, and stand a good chance of getting you first blood.
If you want them to survive longer, either give the Libby Term. Armour &
SS or a relic to help tank hits away from the sternguard. Alternatively, leave the Libby out of the squad and take the full 10 sternguard and combat squad them, forcing your opponent to split his fire between them. Also, try to get the
DP down near an objective as it is an AV12 ObSec unit which is quite hard to budge.