Editing DnD5 DragonStar (section)

=== NEW SITUATIONS/ACTIONS ===
'''Aim''': if the attacker does not move on its turn (Speed 0), it can use a Bonus action to ‘Aim’ at a target when taking a Range Attack action. When it does so, ½ cover drops to no cover and ¾ cover drops to ½ cover. Aim has no effect on full cover.

'''Area of Effects (Explosives)''': (PHB pg. 204) When making an attack with a hand grenade, rifled grenade launcher, mortar, missiles or any other weapon AOE style attack, the attack chooses where the explosive is going to land. Explosive weapons also have two range increments, base and long. Long range grants advantage on affected target’s saving throws. If an attacker does not have Line-Of-Sight on this AOE it is can make an indirect attack, meaning that it can attack over osculates or into area that the attacker cannot see. The range remains the same. Treat targets as Invisible and affected targets have advantages on their saving throws. If the targets are also at the long range of the explosives the targets gain Resistance to the grenades damage (¼ damage at long range with a successful save).

'''Autofire''': When using an Autofire weapon feature, the attacker has two choices, to concentrate on one target or to try fire into an area seeking to damage multiples targets at once. Both affects require the shooter to make a Ranged attack roll at -5. When the attacker concentrates on one target a successful hit deals +2d weapon damage to one target (i.e. an assault rifle that deals 2d8 damage deals 4d8 damage and a critical hit deals 6d8 damage). For the second option, the attacker must get at least a 10+ with its ranged attack check. If it succeeds all targets in the weapons Area of Effect (AOE; PHB pg. 204) must make a Dexterity saving throw vs. '''DC8''' + the attacker’s proficiency + Dexterity ability modifier. All targets that fail suffer the base weapons damage. If they succeed they take ½ damage. If the attacker got a Critical success on its attack then all effected targets saving throw are at disadvantage (instead of dealing double damage).
:''Special'' – the attacker can use a Bonus action to “Brace” to reduce the Autofire penalties to the attack roll to only -2, but its Speed drops to 0 until the start of its next turn. Also bracing grant advantage from all attacks against the attacker until the start of its next turn.
For both Explosive and Autofire AOE
:''Special'' - you do not include Strength or Dexterity modifier nor any range Feat or non-specific Feature (like Grenade Expert) bonuses to damage to any AOE damage types listed above.

'''Cover''': cover is very important in modern/sci-fi settings. Soft cover is provided by effects that obscure vision such as smoke, foliage, etc. These effects cannot stop an attack but rather obscure the creature making them harder to hit. Hard cover works similarly but can be destroyed by damage. Any hit that misses a target do to the cover bonus (including full cover if the attacker wishes to shot it) damages the cover instead. Otherwise cover has an AC of 10 to attack any. ½ Cover can absorb 15 HP, ¾ Cover can absorb 30 HP, Full Cover has 60 HP, and all have Resistance to damage. Full cover that is reduced to 30 HP only provides ¾ cover now, and ¾ cover reduces to 15 HP only provides ½ cover. When all the area’s HP are depleted it no longer provides cover. The material cover is made of also provides Hardness. Light materials (wood, etc.) provide 2 Hardness, Medium material (concrete, plastics, etc.) provide 4 Hardness, Heavy materials (reinforced concrete, steel, etc.) provides 8 Hardness, while Super-Heavy material (reinforced steel, etc.) provide 10 Hardness. It takes ½ movement to initially benefit from cover and when “pop-out” attacking to gain the benefiting from either Full Cover or ¾, also costs the attacker ½ movement.

'''Falling Prone''': unless you are forced Prone, you use 5ft of Movement to fall to the ground prone. Also as a Reaction, if you have at least 5ft of movement remaining this turn or have not acted yet this turn, you can fall prone (costing you 5ft of movement) and gain advantage on any Dexterity saving throws against area of affect spells or weapons that you just reacted too.