I don't know where it should go, but I got my own tactic-tips:
FRIM TIP 1
If adv mara rushes your base and dies, it's most likely that it will try to rush again. Immediately after the "first" rush, you should grab lasgun and jetpack if necessary/chainsuit if possible and try to engage it before it reaches your base. There are tree possibilities - mara can:
a) Try to ignore you and keep going - chase it and block it as much as possible and deal as much damage as possible
b) It will try to kill you - try to discretely move the fight further from your base and, obviously, kill the mara
c) It will run away - don't chase it until you are sure it doesn't have a chance to survive - there's a possibility that it might just want to lure you. Remember - your objective is to defend the base until it's rebuilt/repaired, not to killwhore.
What's important - do it, unless there isn't anyone to repair/rebuild and/or other people follow the tip above with bigger guns. Make sure that you are as far from your base as possible and that you cover as much ways to your base as possible. I often see people standing on still-alive rets after adv mara rush - that's not the most effective way to defend from such kind of rush.
FRIM TIP 2
Don't build booster in retarded places like right in front of aliens base entrance where humans always camp with lasgun at tremor. Makre sure it's safe and accessible. If you notice that booster gets killed many times, then it might be a good idea to build it in safer place, even if it means that not every class is able to get poison from it. Do, however, make sure that every class can access booster's healing aura - good example of such spot is the "second floor" if nexus6's aliens default base. It's quite hard to destroy for humans, but rants will be able to only use healing aura coming from it.
FRIM TIP 3
Why the hell everyone builds om on barrels in niveus' window room? Why build in window room as an alien in first place?