TGMC:Marine Mechanics
This is page for in-depth description of marine-related mechanics.
AP and damage
Each weapon deals damage equal to
Dmg = ammo_dmg * weapon_damage_modifier - tiles_travelled*damage_falloff
Where weapon_damage_modifier is usually 0, and can be seen in weapon codex. For example, T-64 has -50% dmg modifier. Damage falloff also can be seen there, usually it is 0.5 per tile. Base weapon damage is heavily based on the ammo it uses.
Each weapon has AP, Armor Piercing. It reduces the armor of xeno in percent:
Effective_armor = Xeno_armor*(1-AP/100)*(1-Sunder/100)
Then resulting damage is:
Effective_dmg = Dmg*(1-Effective_armor)
Note that Sunder of a weapon directly decreases xeno armor until it is healed. Sunder of 2 decreases armor by 2%.
So if your damage is 100, with 10 AP, and you shoot a warrior with 50 bullet armor and 20 Sunder, then his effective armor is
Effective_armor = 50*0.9*0.8 = 36
Effective damage = 100 * 0.64 = 64
Health
Each limb has fixed healthpool, and breakpoint. After breakpoint is reached, attacks on limb can break it. After limb HP reaches 0, it can be dismembered with probability P = brute_attack_damage * 2. After 20 damage is done to a limb, with 5% chance, half of any further damage goes to internal organs as additional damage.
| Limb | HP | Breakpoint |
|---|---|---|
| Head | 100 | 40 |
| Torso | 200 | 60 |
| Groin | 200 | 60 |
| Arm | 125 | 50 |
| Hand | 75 | 37 |
| Leg | 100 | 50 |
| Foot | 75 | 37 |
Orders
As command staff, you have access to orders, which can be used to buff nearby troops with helpful effects. These also cause you to broadcast a quote over the radio(provided you have one) so people know when you're calling one out. After giving an order, there is a cooldown period until you can give another one. Give orders using the action buttons on the top-left of the screen.
| Command | Description |
|---|---|
Move order |
Increases movement speed. Great for chasing down or running away from xenos, or if you just want to move around fast in general, like on the ship. ROs love it! |
Hold order |
Increases pain resistance. Helpful since pain slows down move speed, makes you drop stuff, and overall just sucks to have. Also saves painkiller supplies for when it's needed more. |
Focus order |
Increases accuracy, which in turn increases total damage output because more shots actually hit the enemy. Also makes them hit friendlies more often, but that's out of your control, mostly. |
Explosions
There are 3 types of explosions, which utilize same mechanics
| Type | Multiplier_Marine | Multiplier_Xeno | Sunder damage |
|---|---|---|---|
| EXPLODE_LIGHT | 1 | 0 | 0 |
| EXPLODE_HEAVY | 2 | 1 | 40-50 |
| EXPLODE_DEVASTATE | 4 | 2 | 90-100 |
Explosion staggers, slowdowns and damages ears of marines. For marines, inflicted damage is 90*Multiplier_Marine split equally between brute and burn, affected by armor.
For xeno, damage depends on XENO_BOMB_RESIST, their bomb armor level, which is discrete.
Damage = 100 + Multiplier_Xeno*40 - 10*XENO_BOMB_RESIST
If Bomb_armor is higher than 4, damage is zero. If bomb_armor is less than 1 and EXPLODE_DEVASTATE, gibs the xeno.
| XENO_BOMB_RESIST | Raw armor required to get | Typical xeno with this armor |
|---|---|---|
| 0 | 0 | Most xeno |
| 1 | 40 | Ravager |
| 2 | 60 | Warrior, Shrike |
| 3 | 80 | Queen, Crusher |
| 4 | 100 | Ancient King |
Turrets
To make a turret out of any weapon, you need to use Build-A-Sentry kit (ctrl+click), which goes to scope slot of a weapon. Most weapons can be turrets, but NOT every weapon will actually shoot. Launchers or any bolted weapons won't, but will still notify about the enemy. Also, despite the fact that turrets aim through friendlies, it doesn't give them IFF (aim), so best used with IFF weapons. Bought in cargo.