first and third fleet were in the battle of the citadel and helped defend the destiny ascension.
reguardless, an entire fleet was unable to damage one actual reaper until shepard sabotaged it and sent it offline. this is brought up time and time again throughout the series. these things are really good at what they do. Superior technology will always win against numbers and tactics, this has been proven time and time again throughout history.
Look at the battles between american colonists and native americans. They had bows and arrows, knowledge of the land, fit, willing and able men willing to die fighting, and numbers to surpass us. we had guns. this was enough to win. even if they were able to get some guns and kill some of our men, we still had more guns, we had cannons, we had the best damn guns in the world. beyond that we had better lines of communication and a stronger form of self-sustinance. "How the West was won" was with guns. the reapers have guns and we have bows and arrows. yeah we can build some thannix cannons of our own and maybe kill some reapers but they'll still overpower us with thier sheer numbers, overwhelming firepower, and survivability. we cant win because they are just better than us in every way.
Raezaiel wrote...
I would like to point out that the entire point of the mass relays, the citadel, and generally every single thing that happens to involve reapers prior to mass effect 3 is based on the fact that conventional warfare by combining the universes fleets works.
The stupidity of constructing a random device that no one understands and is clearly not finished is simply staggering. They could have built an immense and massive fleet with the secret shipyard they must have built for the crucible.
It reminds me of a short story called Superiorty by Arthur C. Clarke. Building things you know works is 100% better than building things that could work but are costly.
The number one reason conventional warfare would work in the current cycle is attrition. No new reapers are being built. In fact, if Arrival is to be believed, you could simply evacuate the solar system and smash a asteroid into the relay to devastate a signifigant portion of the reaper fleet.
Victory at any cost
okay except that this is a prothean device, and research into prothean technology has been the one thing that has pushed our society forward. every single prothean technology discovered in the mars archives has worked and evolved our technology. why is this prothean device suddenly "dumb" and "stupid"?
No new reapers are being built, but the sheer number of reapers already in existence far outstrips our ability to kill them. If we threw all our fleets at them and consistently destroyed reapers we wouldn't even take down 0.01% of all reapers in existence. Even if we killed a thousand soverign class reapers we'd still lose the war. You say war of attrition, but you're looking at it in a small scope ironicly. Liara says we have enough resources to fund a year long war with the reapers, and that within a hundred years we'll have been completely destroyed by the reapers. The reapers can keep fighting without stopping. so can the geth, but the turians can't, the krogan can't, the humans can't. they'll win because they have better guns, they'll win because they outnumber us, they'll win because they dont have to stop.
Also seriously. throw an asteroid at the relay to kill the reapers? You realise that in the time it would take to evacuate ships from that systems reapers would also leave through the relay? How would....using more asteroids even work? You're really oversimplifying things and not looking at the logistics of the situation. :-0