I’d like to suggest the following for an upgrade of the Engineer :
Frigatte heavy repair module for missile bay
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Name: Patrion repair
Type: Heavy repair module
Ship type: Engineer frigate
Rank: 2-6; 7-10, 11-17
Repair range: 2000 m
Energy consumption: 50 pps
Energy on activation: 200 pts
Missile shield range: 2000 m
Active time: 10 s
Recharge: 35 s
Description: Converses the hole Engineer frigate into a very heavy repair ship. The missile bay module passively repairs the most damaged ally in 2500 m radius for 165 hull pps and the most damaged ally for 235 shield pps. On activation creates a slowing field with a radius of 2500 m around the ship, affecting enemies. Takes down an enemy missile in 2500 m range once every 1 second.
In this way the Engineer ship will trade one offensive damaging option, that is the missile bay ammunition, against turning the hole ship in some thing like the heavy repair done of the destroyer class.
What do you say?