ORIGINAL: Kalthaniell
Yeah, reapers are a true menace. Even if we give them a crazy max boost in DW they still wouldn't be properly represented in the gameplay. If it was possible I would give them about 300% weapon damage and 500% shield strengh bonuses. Their ground troops strengh should be over the roof too.
To make it nearly 90% accurate, we need:
1) Make all Reapers major ships indestructible by any weapons. Minor ships with boost 1500% on shields and armor, and 2500-3000% on weapons (or maybe it's not good enough and we need like 8000% and 12000% [&:]).
2) We need to create some kinda hi-end ultra-heavy weapon called "Crucible" with its own researh technology tree, available only for Asari from start (and for other races by ancient locations in Galaxy, so they need to find them first, to be able to start research).
3) After killing each planet (fully populated colony), Reapers get another cap ship and after killing each race - they get
indestructible cap ship (Sovereign class). So the more races they killing (while player runs from them) - the more powerfull they become. Cool, isn't it? [8D]
4) And the last - you can kill indestructible Sovereign class cap ships by Crucible weapon platform, but only 1 per shot

(and reloading time is 2-5 minutes, depending on research progress), and, of course, dont forget, what in single Reaper's fleet could be more, than 1 Sovereign ships at once, and there could be more, than 1 fleets together, so...
...everybody gonna die [8D], exept primitive aborigine races and monkeys in caves, of course.
Almost perfect balance, according ME Universe, isnt it? [:D]