[Suicide Junkie]

What would be nice is multiple levels of concentration.

-Everything
-Only sabotage (rather than non-destructive info gathering ops)
-System X
-Sector Y (to include moons)
-Op Type Z (such as "anti-PPP")

Additional dimensions:
-Every player
-Non-allied (sometimes allies spy on you, too)
-Only "AT WAR" (does not include "none", "non-aggresion", "non-intercourse", "subjugation", or "protectorate")
-Particular player

For the more finely focussed Defence, the intel point multiplier should be higher.
EG: A defensive operation protecting the Altair system from the Phong would get (1.2x5x3) or 18x the points spent on it.

This would be advantageous to smaller empires, especially against a MEE empire, since they can get 3x the effect from concentrating on the MEE player.

The MEE player cannot get the 3x bonus, since they must divide their defense among all of the smaller players. If a particular player was causing most of the trouble, then a 3x bonus concentrated defense might be effective.

Small empires with less than 5 systems would get an advantage by protecting each system individually for the 5x bonus.
When really small, a 20x bonus for protecting a single sector (planet + moons + stuff in orbit) could be even more effective.