Use them wisely, because the husks can quickly overwhelm you and your squad. You can retreat back to the walkway if you need a breather or more thermal clips. If it was activated, assuming it survived the suicide mission, it appears in the aforementioned missions and it will be possible to gain both geth and quarian allegiance. But even a dead god can dream. Since Husks are melee enemies, it is generally best to stay "on the move" rather than getting in cover - this makes it much less likely you will be trapped by husks, and by moving around you will often confuse them.
Addison. Age: 27.
When my brother got married, the best man tried to hit on her.
Lindsey. Age: 21.
Jacob and Miranda debate what to do with the recovered geth. Use that to your advantage if you start to get overwhelmed. However, the mass effect core also powers the mass effect fields that prevent the Reaper from falling into the brown dwarf.