Rad Roaches and Molerats that spawn in empty rooms leave far too quickly. Too often it is impossible to move someone in before they leave. Even worse is the fact that they multiply. Because of this it makes the game far too difficult for new players who haven't gotten many weapons for their vault yet or have recently lost characters in the game. If you have 2 rooms next to each other that are empty this can cause a chain reaction. Such a chain reaction can make it nearly impossible to recover from a difficult fight.

Stimpacks are nearly useless during a combat in the vault. With the exception of fires, any situation where they might be necessary results in vault dwellers standing on top of each other preventing you from selecting them to be healed. Either they should be used automatically in the vault when needed, or you should allow the player to just click on the room where people need healing and have it happen automatically.

Likewise, rooms with stations at different depth often make it nearly impossible to select or grab people. Normally this is simply obnoxious, but in the heat of battle it can be devastating. Rather than clicking on the figure, just pull up the list every time we select the room, and let us drag from the list instead. This would streamline the process so much in a touch scenario. This also gets in the way of selecting a room which is populated as you often end up selecting just a person inside.

In combat there is no rhyme or reason to who replaces who when you drag people into a room. Instead of prioritizing stats, in combat you should prioritize who has the lowest health or does not have a weapon. This would help greatly.

Better yet, instead of dragging a person, let us touch them and then touch the room we wish them to go to. I have terrible trouble with touch drags on any device where unless I jam my finger on the screen, sometimes the screen registers my drag intermittently. I use the touch and place method as my preferred method in Plants vs. Zombies 2, and I see no reason why you shouldn't implement it here.

Amen to this! I've had THREE molerat infestations so far today. The last one killed 17 out of my 60 vault dwellers and injured just about everyone else. And this was after I'd spent quite a bit of time trying to recover from the 1st and 2nd molerat infestations - paying to revive dead dwellers, restocking stimpaks, arming everyone with better weapons, training everyone, etc.

The molerats don't just come up in one room, they come up in like 6-10 rooms at the same time. And in spite of having every room (except residences) filled to capacity and most of my dwellers armed and armored, 50 stimpaks stockpiled and purchasing a Mister Handy, I can't fend them off without tons of deaths and injuries. As you said, the stimpaks are useless. It's takes 2-4 per person to heal during battle, and I can't possibly click on everyone engaged in battle - that's like 30 dwellers at once. Then all the dead bodies lay around making everyone miserable until I can revive them, which is tons of caps - plus the 2000 caps to repair Mister Handy.

The infestation glitch seems to be connected to one particular residence room - that's where the infestation always starts and then immediately spreads across the vault. I've tried to delete the room but the game says I can't because there are too many residents. But I only have 60 residents with space for 98, so I should have plenty of room.

But yes, all glitches aside, the battle mechanics leave a lot to be desired. And at least let us loot the raiders when they're dead! That might help.