Hey, a warm welcome back to MWO!
Let me guess... your above mech is Crusader CRD-5M, right?
AMS in head, AMS+M in RT, M in LT, armor/structure distribution seems to match...IS heavy mech...
The "green" armor +x bonus you've already observed is from the sum of two types of armor quirks, as below:
1b.
Base Armor quirks for CRD-5M: (ie: comes with the mech when you've first bought this)
CT: +10 armor
LT+RT: +10
front armor each
LA+RA: +15 armor each
LL+RL: +10 armor each
1c. You must have a lot of Armor Hardening Skill Nodes activated already, hence you get what you've already observed above partial screenshot.
==>To convince yourself of this, try turning off "all" Armor Hardening Skill Nodes, go back to MechBay Loadout screen, you will observe above (1a) base armor quirks remaining. Suggest you do not "Save" this layout, as just fiddling around.
2a. C.A.S.E.
CASE protects you from (very) damaging explosions to adjacent components, thus improving your suitability.
eg: When you have ballistic or missile ammo in your left arm (LA) and no CASE equipped, and your LA explodes from ammo explosion, it may well also destroy your LT as well. But with CASE in your same LA, your LA explodes from ammo explosion, your LT would not be damaged from this LA explosion.
Ballistic ammo or missile ammo have 10% chance of explosion when the unspent or partially spent ammo bin is destroyed. Completely used up ammo bin obviously does not explode.
So ammo explosion does not always happen. The trick is ammo placement, and have "just" enough ammo to finish QP fight.
Edit: I myself rarely use CASE, as ammo explosion rarely happen for me (see below).
I use CASE only when there is a spare critical slot or two, and there is absolutely nothing else to do with it.
For example, for
each MRM30 my own rule of thumb is 2.5ton of MRM ammo.
Hence for your CRD-5M with 2xMRM30 suggest you use 5ton MRM ammo.
ie: 4ton in both legs, and 1ton in head.
ie: 3ton in both legs with CASE in one leg, 1ton in head, 1ton in CT (where CT is relatively well protected).
The
current MWO ammo usage order is:
CT, RT, LT, LA, RA, LL, RL, H
Source:
https://wiki.mwomerc...p?title=Weapons
CASE can now be
placed into arms/legs/LT/RT of mech.
CASE weights "zero" tons, but still occupy 1x critical slot.
Ammo that
cannot explode: Gauss ammo, AMS ammo
All other ammo have 10% chance to explode upon crit.
2b. CASE is a
must for Gauss weapons.
******CASE protects you from explosion upon Gauss weapon destruction.
IS mechs have 90% chance of explosion upon Gauss weapon destruction.
Clan mechs have 100% chance of explosion upon Gauss weapon destruction.
Source:
https://wiki.mwomerc...rnal_Explosions
Edited by w0qj, 14 August 2022 - 06:52 AM.