Some cards award VP for destroying enemy models or units. If you gain VP as described on such cards, you retain those VP even if those destroyed models or units are subsequently returned to the battlefield.
Some cards award VP up to a stated limit, which may not be a round multiple, e.g. ‘2VP (up to 5VP)’. In such cases, you can keep scoring up to the stated limit, then any excess VP awarded are lost.
Some cards begin with a section named ‘When Drawn’, which details immediate next steps including when such cards either can or must be discarded. Note that if such a card is a Secondary Mission card, this section only applies if you are using Tactical Missions.
If an Action’s Units section places a limit on the number of units that can perform it, this means that only that number of units from your army can be performing that Action at any one time.