Keepers have sequels
if u dread the vaygr forces, well dread them no longer as keepers make them look like amateurs. this time u get to meet 4 invulnerable keepers(capital ship killers). don't forget their spawn: drones(frigate killers).
in this mission, your dreadnaught is all but 100% operational. if u recall the previous mission where it fired its badass cannon & fried vaygr shipyard & itself, the dreadnaught isn't what it used to be.
henceforth bentus. the bentusi offers to repair the dreadnaught's badass cannon. accept their offer by docking the dreadnaught on the bentus. do this ASAP as keepers will appear very very soon & in numbers. your 'lucky' number in this mission is 4. yes, 4 keepers that are very much invulnerable to any weapon.
but don't give up. use all your forces & damage the keepers one by one. use your interceptors, corvettes & flak frigates to terminate thedrones while the rest get the keepers. bombers help a lot in damaging the keepers. once the health of the keepers drop to a quarter or so, it'll phase out. nope, u didn't kill it & it'll be back very soon. so the assault continues till the timer runs its full course (15 minutes, i think).
after holding back the keepers & defending the bentus & yourself, the dreadnaught is fully repaired. what follows is something inevitable.
note: again i do not mention about harvesting as this is what any homeworld gamer should do if there is any resource to collect. marine & defense field frigates again are useless in this mission.