BREACHPROTOCOL

WASD move · Space toggle lowered weapon · Shift slow & steady · C crouch · Q / E lean
LMB fire · RMB aim · MMB ping (hold MMB the comms wheel: light, laser, magnifier, calls to the squad) · R reload (R R dump reload, hold R check the magazine, or the chamber on a gun without one) · I inspect (hold I hold the chamber check open; the mouse turns what you hold) · 1 / 2 / wheel swap (wheel while aiming: magnification)
3 / 4 / 5 a grenade into your hand (frag and flashbang to start; drag one onto a key's box in the inventory to change it): hold LMB to pull the pin, release to throw, RMB underhand / weak / strong; the key again or 1 / 2 puts it away · H body & kit (as Tab) · hold B swap with the gun in your backpack · V shout compliance · X fire selector
hold F doors (aim high: open, low: kick), bag evidence, arrest, restrain or revive
Y vote to leave · M mute · F8 echo paths · F9 hitboxes · Tab inventory, health & scoreboard · Enter chat · Esc menu