for #2 :
Sha'din Trap Scanner (or whatever, I'm too lazy to find better names

)
- size 15, Scan 50, Attack 50
- Start with 1 charge, refillable by doing the same mission as a DAILY, 2 charges MAX (to prevent someone stacking charges for abuse)
- When used on an enemy, it completely removes all traps set (except Halcyon? Discuss)
for #4
Dark Matter Inverter
- size 20, Cloak 150
- When used (5000 EM) creates a stable layer of dark matter around the ship, increasing cloak by 500 for 4 hours
Firewall Deactivator (or whatever)
- size 20, Cloak 100, Scan 100
- When used (5000 RP) grants 10% Hacking bonus for 4 hours