Oblarg wrote...
Obviously they didn't anticipate exactly when it would happen, but don't you think it's slightly odd that this hyper-advanced machine race never even considered the possiblity that their usual plan might run into a hitch at some point? It seems rather pathetic that they didn't have a reasonable plan B.
<sorry for the ensuing wall of text, got excited

>
WEll they probably never anticipated that a team of 3 people could kill a Reaper's Chosen (or whatever Saren called himself), or destroy an entire unit of Asari Commando's, or make a Quarian and Geth work together.
Above all the Reaper's are arrogant. They have been created that way
It does seem a bit strange though that they would leave a dead Reaper lying around though, after all the work they did to make their species vanish. That part to me really really does not make sense. How could they just forget about it? Anyway that's an issue for the writers to worm their way out of...
This is the timeline of their contingency, as I see it (and how it's laid out in ME/ME2):
Plan A
~2170, Reaper signal sent to Citadel
Plan B
Nazara signalled by Harbinger that the gate hasn't opened
Nazara assesses the situation, and the strength required to capture the Citadel - fullfrontal atack isn't possible, needs to indoctrinate someone with access to the Citadel already (lol and there is a nice contradiction here... why couldn't Saren just activate the signal)
Nazara downloads a virus to the main Geth Hub
~2180-2185?
Nazara let's Saren 'find' him.
~2187 Geth + Nazara attack Eden Prime looking for the artifact
Attacks Fails, Nazara Dies, Harbinger mad.
Plan C
Harbinger orders the Collectors to kill Shepard, luring the Normandy into a trap. As an insult to the human who killed Nazara, Harbinger instructs the collectors to farm Humans to make another reaper that could infiltrate the Citadel and signal the Relay.
2189 Shepard is revived. (in a base so secret the Collectors never picked up a transmission about it, apparently)
2190 Shepard destroys the Collector Overseer, Harbinger's link to the base.
Plan D
Harbinger vewy vewy mad now. Notice Harbinger blames organics for his failure (Collector Overseer) and never himself. Guess we'll see what this plan is in ME3. "We will find another way"