When do missed shots and/or suppression shot destroy objects

Adjacency is horizontal and vertical. Each "pair" of facilities counts as one adjacency bonus. Generally you can count the plusses to determine the specific level of benefits you are receiving.

The types and adjacency bonuses are as follows:

1. Laboratory: 10% research speed bonus for each adjacency bonus.
2. Workshop: 7% refund on resources used to build items (that's gear, facilities, and vehiciles) for each adjacency bonus.
3. Satellite Uplink/nexus: +1 capacity for each adjacency bonus.
4. Power, Elerium, Thermal Generators: +2 power for each adjacency bonus.

Note that if you go into the Build Facilities screen, you can see this in the description text (of the currently highlighted facility), but sometimes you have to sit there and wait for it to start scrolling.

It has never been the case that enemies can attack the player's squad members during the activation sequence. However if the enemies are activated on the very last available squad turn during a dashing move, the game will automatically progress from the activation sequence to the enemy's turn. A chryssalid or berserker can, during an activation sequence, move towards the player as part of their free move. If they end up next to a squad member, they can attack immediately on their next turn. If the game progress to their turn directly after activation, this gives the impression that the aliens attacked as part of the activation sequence.