I've made a couple alterations to the Tachi gang base to make it more raid-friendly which should increase activity.
Before you give some feed-back, please take into account that Tachi's an old base, which left me with two standards to follow:
1. When I edited current levels, I tried to respect how it was originally made seeing as it's one of the oldest levels still on the gmap.
2. The extra levels constructed followed the same simple tile scheme and thus criticism toward my tile detail would be redundant.
The problem: Tachi's gang base is fairly lame at the moment. Once you get in, you can't get out whereas all other gang bases allow players to easily exit the gang base once inside.
(Also take into account that it's going to show a lot of the older tiles because the updated tiles can only be seen if the levels were actually uploaded onto Era).
PLEASE READ ABOVE BEFORE LOOKING AT THE LEVELS, ALSO READ THE NOTATIONS BELOW EACH LEVEL EXPLAINING THE CHANGES.
Edit: Click the attachments to enlarge. -Chris Vimes

I constructed an extension to the Tachi base and made a functioning garage.

Very simple, and links to where the current link on the gmap goes into the base.

I extended the base vertically by 4 tiles to give the base more space in order to encourage PKing in the main base rather than camping the healing room. I also added a soda machine to relate to other gang bases having soda machines in their main level. I also created a table at the bottom wall to prevent guns that can reach over the wall from laming the entrance.

Added a door at the top right that connects to a new spar room. I've noticed that when raiding Tachi's gang base, if you don't hold the heal room, you can't hold the base. Thus, along-side with providing another level that all gangs but Tachi have, laming the healing room will become less crucial when raiding.

Yes, I know -- it's very, very simple. As I said, I was trying to keep the "simple" tile scheme the Tachi base has. If I were to add detail to the spar, it wouldn't match the gang base.
I accept any and all constructive feed-back. I'm just doing this for fun and with the intention of expanding upon raiding territory. Send me a forum PM or PM on Era if you want me to send you the levels.