Undaunted 2200: Callisto

No. MOVE and GUIDE can enter only spaces your faction has scouted or controls; SCOUT lets a unit move into unscouted spaces and mark them scouted. (p. 16)

Yes. For each new scouted marker you place with SCOUT, take an Interference card from your supply into your discard pile, if any are available. (p. 16)

No. After your turn, discard all cards in your hand and play area; the card you bid for initiative is also discarded. (p. 14)

It leaves your deck and returns to your supply; a later BOLSTER action can add it back to your discard pile. You can’t hunker down an Interference card. (p. 15)

No. Roll the number of dice shown by the action, and the attack succeeds if any one die equals or exceeds the target’s total defence. The die type depends on the attacker’s and target’s elevations. (p. 19)

Usually it removes one matching card from the opponent’s hand, discard pile, or deck, in that order; the counter stays on the board. The unit is neutralised and removed only if no matching card is in any of those places. (p. 19)