For first timers use ME3 Mod Manager. All mods are from Nexus. When modding you need to install the Community Patches for each game _before _any other mods, and install the ALOT texture mod last for each game.
Launcher:
Unofficial LE2 Patch Launcher Video Fix.
Also used a patch to skip online authentication. Found by using a search engine, look in forum posts for the link.
ME1:
LE1 Community Patch.
Black Market License.
Charted Worlds.
Elements of Comparative Weaponry.
Galaxy Map Trackers.
LE1 Streamlined Weapon Loadouts.
Mission Timings.
Pinnacle Station DLC.
ALOT LE1.
ME2:
Unofficial LE2 Patch.
DLC Timings.
EGM Armors for LE2.
Expanded Shepard Armory (ESA) LE2.
Miranda Butt Shot Restoration LE2.
Overlord Morality Fix.
Reaper Husks Consistency.
ALOT Update LE2.
ME3:
Community Framework 1.6.9.
Community Patch.
Choose Your Outfit.
Collectors Cabin.
Expanded Universe Mod.
-EGM Armors.
-EGM Extras.
-EGM Squad.
-EGM Mod Menu.
Miranda Butt Shot Restoration LE3.
Miranda Mod LE3.
Persistent Settings.
Spectre Expansion Mod.
Take Earth Back.
deleted by creator
You can still get achievements.
I don’t think they disable them, no.