I'd like to refer the creators of this mod to the sacrifice of angels mod and how they implemented the borg. They made them almost unstoppable. Make the capital ships for the reapers/geth/collectors as follows: Sovereign/Harbinger/maybe 2 other reaper models?/collector ship
but make the reapers extremely expensive and cost research only late in the game. Sovereign can be mid level research since sovereign needs to show up earlier in the story. The collector ship can be a little later to fit in with the flow and the Harbinger much later. Possibly create a geth capital ship though? so there aren't as many reapers, maybe have a basic reaper design so that if in mass effect 3 *crossfingers* there are battles with multiple reapers, we don't have to have to many reapers.
I'm offering to help make maps for any mass effect mod efforts, but I'd request that they use distant stars planets (tweaked) to have all the sol planets. We need the citadel as planet type, the collector base as a planet type.
The star base for the Alliance can be the Cerberus station from ME2 unless they show a better station in ME3. Also the Alliance should be a mix of alliance and cerberus. There could even possibly be a seperate research tree for Cerberus tech.
The star base for the Reapers/Geth can be the geth station we see in ME2.
The star base for the Council can be something haha I don't think we've seen council stations except the citadel which shouldn't be popping up all over the game by planets lol.
Make the pirate bases omega and use the mercenary groups as the pirates.
The SR-1 should be the scout but still have the ability to fight, like the constitution class ships in the sacrifice of angels star trek mod. Because the normandy SR-1's primary point is reconaisance. She wasn't designed with fighting in mind. The SR-2 should be a cruiser.
I really hope that someone gets this mod going. It really has the potential to be one of the best sins mods. But I would also stress the use of the ingame codex for help making the mod more accurate.
edit: just had a great idea, instead of having the culture structures in the game, make the reaper/geth be indoctrinators of some kind.