Edolix wrote...
Perhaps, but that lack of firepower could easily compromise any existing strategies that Hackett could have used.
I'll use that example you used in your original post, about the turians and their FTL tactic. The turians have a truckload of dreadnaughts spread across all of their fleets so this was naturally a very viable tactic for them.
The number of dreadnoughts used in the tactic isn't specified. Also, you're ignoring being able to use cruisers for this tactic, while frigates can repel Destroyers.
The Alliance have 9 dreadnaughts spread across about 5 different fleets, which would leave about 2/3 dreadnaughts per fleet. At the battle of Arcturus, they only had the Second, Third and Fifth fleets present. That's about 5 dreadnaughts. Hardly enough to make a difference. Plus, Hackett was taken completely by surprise.
As I've said, spreading out the fleets was an immense tactical blunder. They should have consolidated at Arcturus Station, or in Sol (NOT Charon or in orbit of Earth), not both.
Also, Hackett was NOT taken by surprise. They knew the Reapers were coming from Batarian space.
I'm sure Hackett could have used that same FTL strategy, using cruisers/frigates instead. However, they would have most likely barely scratched the Sovereigns and would have most likely ended up getting destroyed in the process.
One dreadnought plus however many cruisers and frigates that can be attached to them.
If a frigate sized thanix cannon can provide cruiser level firepower, then a cruiser scale would provide even more, and contrary to some claims they DO scale up (e.g. the Kwunu).