Brink
43 Achievements
1,250
20-25h
Mutual Support
Have a Field Regen Unit buff more than 3 players simultaneously
30
How to unlock the Mutual Support achievement in Brink - Definitive Guide
Easy way to get this with the AI is to load up security day 1 hostage rescue make sure your on the attacking side as their spawn is nice and narrow.
Place the regen unit right on the spawn point and sit and wait for several of your AI cannon fodder to die and respawn at the same time.
Took 30 seconds for me, but obvioulsy may take longer from game to game.
This will require you to be Level 20 or Rank 5 and to have purchased the Field Regen Unit Ability.
Once you have done that, start up campaign Day 1 and change to a medic at the command post. Then walk back to your spawn and put down the Field Regen Unit. Now simply sit back and wait for your team to run in, die, and then respawn into your Field Regen.
I'd tried other maps before but the AI are just idiots. Could do this on multiplayer with mates but this is a very simple way to get it
Required Class: Medic
Required Ability: Field Regen Unit
Ability Unlocked: Rank 5
Health regen unit, Heals allies in small area effect. Select using and hold to place. Most effective placed next to objectives or where heavy fighting is taking place near your allies. This will unlock when 3 allies are being healed at the same time, allies do not need to be be damaged before they can be healed. Thanks to Tyger7 for confirmation.
Here a some level guides if you are having problems unlocking through normal play.
sera07 guide - Day 3: Chen's plans - Faction Resistance - 1st objective
Rush into the mainframe room, place the Field Regen Unit in the room surrounded by glass doors. This is a heavy fighting room and most of your allies will be in or around this room. This should unlock within 3 minutes.
Tyger7 guide - Day 1: Hostage Rescue - After completing 1st objective.
After the cutscene, run a little bit down the hallway and place the Field Regen Unit. You should have around 4 or 5 people walk throught it. A few seconds later the achievement will unlock.
You will need to be Rank 5, level 20 and use one credit to be able to use the Field Regen Unit. From the Main Menu > go to Characters & Weapons > then Abilities. Under Medic Abilities there will be the 'Field Agent Unit' to the far right in the middle. You will need to use one credit to get this one. You get one credit every time you level up.
I found this easier to do in a private freeplay match and picking Terminal Map with 8 players on each team. It's best to be on the resistance side. Thanks Factor747. Depending on where you start off at there will be an open elevator shaft that your teammates will take that can help you drop to the lower level. Once you hit the lower level plant the Field Regen Unit. This will take some time, but it will happen in due time. Since your teammates will mostly die and spawn at the same time they will drop down at the same time and pass by the unit simultaneously. The trophy will soon pop up if three teammates run through it at the same time. Here is an image of where you should planet the Unit.